diff --git a/sbin/sconfig/sconfig.8 b/sbin/sconfig/sconfig.8
index 314ab1964ddb..a169c4a4a101 100644
--- a/sbin/sconfig/sconfig.8
+++ b/sbin/sconfig/sconfig.8
@@ -1,14 +1,14 @@
 .\" $FreeBSD$
 .Dd November 21, 2003
 .Dt SCONFIG 8 i386
-.Os FreeBSD
+.Os
 .Sh NAME
 .Nm sconfig
 .Nd channel configuration utility for Cronyx adapters
 .Sh SYNOPSIS
 .Nm
 .Op Fl aimsxeftuc
-.Op Ar device name
+.Op Ar device
 .Op Ar data rate options
 .Op Ar protocol options ...
 .Op Ar interface options ...
@@ -16,14 +16,15 @@
 The
 .Nm
 utility is used for configuring the channel options of the Cronyx
-adapters. In asynchronous mode all the parameters should be set by standard
+adapters.
+In asynchronous mode all the parameters should be set by standard
 .Xr stty 1
 utility, with
 .Nm
 you could set only few of them (see below).
 .Pp
 Some of the options could be set only on free channels, that is the
-corresponding network interface in 
+corresponding network interface in
 .Ar down
 state in the synchronous mode, and in the asynchronous mode the asynchronous
 terminal device
@@ -31,8 +32,7 @@ terminal device
 closed.
 .Pp
 Other channel options could be changed
-.Do on the fly
-.Dc .
+.Dq "on the fly" .
 Generally, the channel options are set up during the operating system startup,
 for example from the
 .Pa /etc/rc
@@ -42,259 +42,359 @@ Note, that not all options have a sense for every particular
 case, and an attempt to set some of them can hang up the channel or
 the whole adapter.
 .\"--------------------------------------------------------------
-.Ss "Information options"
-You can specify only one of these options. If information option is specified,
-sconfig will show corresponding information and will ignore all other options,
+.Ss "Information Options"
+You can specify only one of these options.
+If information option is specified,
+.Nm
+will show corresponding information and will ignore all other options,
 except
-.Ar device name.
-See also description of the 
-.Ar device name.
-.Bl -tag -width 10n
+.Ar device .
+See also description of the
+.Ar device .
+.Bl -tag -width indent
 .It <none>
 This will show settings of the channel.
 .It Fl a
 Print all settings of the channel.
 .It Fl i
 Print interface settings, equal to the output of
-.Xr ifconfig 1
-command.
+.Xr ifconfig 8
+utility.
 .It Fl m
-Print modem signal status. The description of all signals can be found in
-any document related to the modems. Only LE signal should be described. If
-this signal is On, than some what use channel. If it is Off, than channel is
-free.
+Print modem signal status.
+The description of all signals can be found in
+any document related to the modems.
+Only LE signal should be described.
+If this signal is On, than some what use channel.
+If it is Off, than channel is free.
 .It Fl s
-Print brief channel statistics. This is general statistics. See also
-.Fl x
-,
-.Fl e
-,
-.Fl f
-,
-.Fl t
+Print brief channel statistics.
+This is general statistics.
+See also
+.Fl x , e , f , t
 and
 .Fl u
-options. For the description of output, see below.
+options.
+For the description of output, see below.
 .Pp
-This statistics is very useful if something goes wrong. For example, if you
+This statistics is very useful if something goes wrong.
+For example, if you
 have no any interrupts, than you use interrupt that is not registered in BIOS
 for use with ISA bus.
 .It Fl x
-Print full channel statistics. This options allows to see some more counters,
-but with less precision than with
-.Pa -s
+Print full channel statistics.
+This options allows to see some more counters,
+but with less precision than with the
+.Fl s
 option.
 .It Fl e
-Print brief E1/G703 statistics. If you select this option, you will get
-statistics accumulated for period of time equal to 15 minutes. For the
+Print brief E1/G703 statistics.
+If you select this option, you will get
+statistics accumulated for period of time equal to 15 minutes.
+For the
 description of output, see below.
 .It Fl f
-Print full E1/G703 statistics. This option shows all E1/G703 statistics that
-shows previous option(
-.Fl e
-), but also total statistics for whole period of time and statistics for 24
-hours (if available). For the description of output, see below.
+Print full E1/G703 statistics.
+This option shows all E1/G703 statistics that
+shows previous option
+.Pq Fl e ,
+but also total statistics for whole period of time and statistics for 24
+hours (if available).
+For the description of output, see below.
 .It Fl t
-Print brief E3/T3/STS-1 statistics. If you select this option, you will
-get statistics accumulated for period of time equal to 15 minutes. For
+Print brief E3/T3/STS-1 statistics.
+If you select this option, you will
+get statistics accumulated for period of time equal to 15 minutes.
+For
 the description of output, see below.
 .It Fl u
-Print full E3/T3/STS-1 statistics. This option shows all E3/T3/STS-1
-statistics that shows previous option(
-.Fl t
-), but also total statistics for whole period of time and statistics for 24
-hours (if available). For the description of output, see below.
+Print full E3/T3/STS-1 statistics.
+This option shows all E3/T3/STS-1
+statistics that shows previous option
+.Pq Fl t ,
+but also total statistics for whole period of time and statistics for 24
+hours (if available).
+For the description of output, see below.
 .It Fl c
-Cleans all kind of statistics. 
+Cleans all kind of statistics.
 .El
 .\"--------------------------------------------------------------
-.Ss "Device selection"
+.Ss "Device Selection"
 Device is equal to the name of the interface that is used for a name of
 the interface that is sees
-.Nm ifconfig.
+.Xr ifconfig 8 .
 The channel number depends on the order of loading drivers by the system.
-Some times people confuse channel number and adapter number because of the
-same spelling. Adapter number appears in kernel context, channel number
+Sometimes people confuse channel number and adapter number because of the
+same spelling.
+Adapter number appears in kernel context, channel number
 in configuration context.
-.Bl -tag -width 10n
+.Bl -tag -width indent
 .It <none>
-You can omit device name only if you want to get information. This will cause
-printing information about all available channels of Cronyx adapters. In the
+You can omit device name only if you want to get information.
+This will cause
+printing information about all available channels of Cronyx adapters.
+In the
 case you want to make some settings you MUST specify device name.
-.It cx##
-This is the channel name for the Sigma family of Cronyx adapters. (ISA bus)
-.It ct##
-This is the channel name for the Tau family of Cronyx adapters. (ISA bus)
-.It cp##
-This is the channel name for the Tau-PCI family of Cronyx adapters. (PCI bus)
-.It ce##
-This is the channel name for the Tau32-PCI family of Cronyx adapters. (PCI bus)
+.It Li cx##
+This is the channel name for the Sigma family of Cronyx adapters.
+(ISA bus.)
+.It Li ct##
+This is the channel name for the Tau family of Cronyx adapters.
+(ISA bus.)
+.It Li cp##
+This is the channel name for the Tau-PCI family of Cronyx adapters.
+(PCI bus.)
+.It Li ce##
+This is the channel name for the Tau32-PCI family of Cronyx adapters.
+(PCI bus.)
 .El
 .\"--------------------------------------------------------------
-.Ss "Data rate options"
-.Bl -tag -width 10n
-.It value
-If case of nonzero value it will cause setting data rate to given value and
+.Ss "Data Rate Options"
+.Bl -tag -width indent
+.It Ar value
+In case of nonzero value it will cause setting data rate to given value and
 setting the internal clock source of the synchronization (in synchronous mode).
 Zero value is equal to the
-.Ar extclock.
+.Cm extclock .
 The transmitted data (TXD) are synchronized using the internal on-board timing
 generator, the internally generated timing signal is driven on the TXCOUT pin,
-and the signal on the TXCIN pin is ignored. This mode is used for direct
-terminal-to-terminal communication, e.g. for connecting two computers together
-in a synchronous mode via relatively short cable.  This method should also be
+and the signal on the TXCIN pin is ignored.
+This mode is used for direct
+terminal-to-terminal communication, e.g., for connecting two computers together
+in a synchronous mode via relatively short cable.
+This method should also be
 used for testing channels with an external loopback connector.
-.It extclock
-Set the external timing clock source of synchronous channels. External clock
-mode is the most common method for connecting external modem hardware. In this
+.It Cm extclock
+Set the external timing clock source of synchronous channels.
+External clock
+mode is the most common method for connecting external modem hardware.
+In this
 mode the external timing signal is received on TXCIN pin of the connector,
 and it is used as a synchronization clock for transmitting data (TXD).
 .El
 .\"--------------------------------------------------------------
-.Ss "Protocol options"
-Note. These option could be set only if channel is free and they requires
+.Ss "Protocol Options"
+Note.
+These option could be set only if channel is free and they requires
 specifying of the device name.
-.Bl -tag -width 10n
-.It async
-Set asynchronous protocol (or mode). In this mode Cronyx adapters behave as a
+.Bl -tag -width indent
+.It Cm async
+Set asynchronous protocol (or mode).
+In this mode Cronyx adapters behave as a
 usual serial devices and you may work with them using usual serial utilities.
-All asynchronous settings are performed via serial configuration utilities. With
-.Nm sconfig
-you may set only a few of them. See also
+All asynchronous settings are performed via serial configuration utilities.
+With
+.Nm
+you may set only a few of them.
+See also
 .Xr stty 1 .
-(Only for Sigma family)
-.It cisco
+(Only for Sigma family.)
+.It Cm cisco
 Set the Cisco HDLC synchronous protocol.
-.It fr
-Set the Frame Relay synchronous protocol (ANSI T1.617 Annex D).
-.It ppp
-Set the PPP synchronous protocol. Parameters to the PPP could be set by the
+.It Cm fr
+Set the Frame Relay synchronous protocol
+.Tn ( ANSI
+T1.617 Annex D).
+.It Cm ppp
+Set the PPP synchronous protocol.
+Parameters to the PPP could be set by the
 command
-.Xr spppcontrol 1 .
-.It keepalive=on, keepalive=off
-Turns on/off sending keepalive messages. This option is used only for
-synchronous PPP. If this option is on, than PPP will periodically send
-echo-request messages. If it would not receive any echo-reply messages for
-some (definite) period of time it will break connection. It is used for
+.Xr spppcontrol 8 .
+.It Sm Cm keepalive No = Bro Cm on , off Brc Sm
+Turns on/off sending keepalive messages.
+This option is used only for
+synchronous PPP.
+If this option is on, than PPP will periodically send
+echo-request messages.
+If it would not receive any echo-reply messages for
+some (definite) period of time it will break connection.
+It is used for
 tracking line state.
-.It idle
-You are using NETGRAPH. Protocol depends on connected module.
+.It Cm idle
+You are using Netgraph.
+Protocol depends on connected module.
 .El
 .\"--------------------------------------------------------------
-.Ss "Interface options"
+.Ss "Interface Options"
 Not all of these options could be set on running channel and not all of them
-are suits to all kind of adapters/channels. In all dual state options off is
-default value. All this options is not applicable in asynchronous mode, except
-debug option.
-.Bl -tag -width 10n
-.It port=rs232, port=v35, port=rs449
-Set port type for old Sigma models. 
-.It cfg=A, cfg=B, cfg=C
-Set configuration for the adapter. This option could be set only for Tau/E1
+are suits to all kind of adapters/channels.
+In all dual state options off is
+default value.
+All this options is not applicable in asynchronous mode, except
+.Cm debug
+option.
+.Bl -tag -width indent
+.It Sm Cm port No = Bro Cm rs232 , v35 , rs449 Brc Sm
+Set port type for old Sigma models.
+.It Sm Cm cfg No = Bro Cm A , B , C Brc Sm
+Set configuration for the adapter.
+This option could be set only for Tau/E1
 and Tau/G703 and only if all channels are not running.
-.Ar cfg=A
-- Two independent E1/G703 channels. This is default setting.
-.Ar cfg=B (Only for ISA models)
-- For Tau/G703 this mean one G703 channel and one digital channel.
-For Tau/E1 first physical channel divides on to subchannels. One of them
+.Bl -tag -width ".Cm cfg Ns = Ns Cm A"
+.It Cm cfg Ns = Ns Cm A
+Two independent E1/G703 channels.
+This is default setting.
+.It Cm cfg Ns = Ns Cm B
+(Only for ISA models.)
+For Tau/G703 this mean one G703 channel and one digital channel.
+For Tau/E1 first physical channel divides on to subchannels.
+One of them
 goes to the first logical channel and another one goes to the second physical
-channel. Second (logical) channel is digital channel.
-.Ar cfg=C
-- This configuration is used only for E1 models. In this case first
-physical channel consists of three data flows. Two of them go to two
-(logical) channels. The last one goes to the second physical channel. On new
+channel.
+Second (logical) channel is digital channel.
+.It Cm cfg Ns = Ns Cm C
+This configuration is used only for E1 models.
+In this case first
+physical channel consists of three data flows.
+Two of them go to two
+(logical) channels.
+The last one goes to the second physical channel.
+On new
 models (Tau32-PCI, Tau-PCI/2E1 and Tau-PCI/4E1) this configuration means single source
 of synchronization and passing all unused (in both channels) timeslots from
-one channel to other. For the detailed description of the configuration see
-your documentation to the adapter. This option could not be set on running
+one channel to other.
+.El
+.Pp
+For the detailed description of the configuration see
+your documentation to the adapter.
+This option could not be set on running
 channel.
-.It loop=on, loop=off
-Turn on/off internal loopback. This mode is useful for testing. Switch on this
-option and try to send something. If you have no any interrupt, than, probably,
-you forgot to switch using IRQ for PCI to ISA bus. Check your BIOS settings.
-.It rloop=on, rloop=off (Only for Tau32-PCI and Tau-PCI/E3)
-Turn on/off remote loopback. This mode is also useful for testing.
-.It dpll=on, dpll=off
-Turn on/off digital phase locked loop mode (DPLL). When enabled, the receiver
-timing clock signal is derived from the received data. Must be used with NRZI
+.It Sm Cm loop No = Bro Cm on , off Brc Sm
+Turn on/off internal loopback.
+This mode is useful for testing.
+Switch on this
+option and try to send something.
+If you have no any interrupt, than, probably,
+you forgot to switch using IRQ for PCI to ISA bus.
+Check your BIOS settings.
+.It Sm Cm rloop No = Bro Cm on , off Brc Sm
+(Only for Tau32-PCI and Tau-PCI/E3.)
+Turn on/off remote loopback.
+This mode is also useful for testing.
+.It Sm Cm dpll No = Bro Cm on , off Brc Sm
+Turn on/off digital phase locked loop mode (DPLL).
+When enabled, the receiver
+timing clock signal is derived from the received data.
+Must be used with NRZI
 encoding, to avoid the synchronization loss.
-.It nrzi=on, nrzi=off
-Turn on/off nrzi encoding. In off state nrz encoding is used. NRZ - the zero
+.It Sm Cm nrzi No = Bro Cm on , off Brc Sm
+Turn on/off nrzi encoding.
+In off state nrz encoding is used.
+.Bl -tag -width "NRZI"
+.It NRZ
+the zero
 bit is transmitted by the zero signal level, the one bit - by the positive
-signal level. NRZI - the bit number zero is transmitted by the change of the
-signal level, the one bit - by the constant signal level. Commonly is used with
-dpll=on option.
-.It invclk=on, invclk=off
+signal level.
+.It NRZI
+the bit number zero is transmitted by the change of the
+signal level, the one bit - by the constant signal level.
+.El
+.Pp
+Commonly is used with
+.Cm dpll Ns = Ns Cm on
+option.
+.It Sm Cm invclk No = Bro Cm on , off Brc Sm
 Invert the both transmit and receive clock signals (Tau and Tau-PCI only).
-.It invrclk=on, invrclk=off
+.It Sm Cm invrclk No = Bro Cm on , off Brc Sm
 Invert the receive clock signals (Tau-PCI only).
-.It invtclk=on, invtclk=off
+.It Sm Cm invtclk No = Bro Cm on , off Brc Sm
 Invert the transmit clock signals (Tau-PCI only).
-.It higain=on, higain=off
+.It Sm Cm higain No = Bro Cm on , off Brc Sm
 Turn on/off increasing the E1 receiver non linear sensitivity to -30 dB (E1
-only). In of state the sensitivity is -12 dB. This allows increasing line
+only).
+In of state the sensitivity is -12 dB.
+This allows increasing line
 distance.
-.It cablen=on, cablen=off (Only for Tau-PCI/T3 and Tau-PCI/STS-1)
+.It Sm Cm cablen No = Bro Cm on , off Brc Sm
+(Only for Tau-PCI/T3 and Tau-PCI/STS-1.)
 Turn on/off adjusting transmit signal for long cable T3/STS-1.
-.It monitor=on, monitor=off
-Turn on/off increasing the E1 receiver lines sensitivity to -30 dB
-(Tau32-PCI, Tau-PCI/2E1 and Tau-PCI/4E1 only). This could be used for interception
+.It Sm Cm monitor No = Bro Cm on , off Brc Sm
+Turn on/off increasing the E1 receiver lines sensitivity to -30 dB.
+(Tau32-PCI, Tau-PCI/2E1 and Tau-PCI/4E1 only.)
+This could be used for interception
 purposes.
-.It phony=on, phony=off
-Turn on/off the so-called phony mode (Tau32-PCI and Tau-PCI E1 family only). This mode allows
-receiving raw CEPT frames from E1 line. Raw frames could be accessed, for
-example, via raw protocol. Packets would come at rate of 500 frames per second
-with length 16xN (for Tau-PCI/E1 model), where N is the number of timeslots. For
+.It Sm Cm phony No = Bro Cm on , off Brc Sm
+Turn on/off the so-called phony mode.
+(Tau32-PCI and Tau-PCI E1 family only.)
+This mode allows
+receiving raw CEPT frames from E1 line.
+Raw frames could be accessed, for
+example, via raw protocol.
+Packets would come at rate of 500 frames per second
+with length
+.No 16* Ns Ar N
+(for Tau-PCI/E1 model), where
+.Ar N
+is the number of timeslots.
+For
 Tau-PCI/2E1 and Tau-PCI/4E1 N should be equal to 32 independently from number of
 used timeslots.
-.It unfram=on, unfram=off
-Turn on/off unframed mode (Tau32-PCI, Tau-PCI/2E1 and Tau-PCI/4E1 only).
-.Ar unfram=on
+.It Sm Cm unfram No = Bro Cm on , off Brc Sm
+Turn on/off unframed mode.
+(Tau32-PCI, Tau-PCI/2E1 and Tau-PCI/4E1 only.)
+.Bl -tag -width ".Cm unfram Ns = Ns Cm off"
+.It Cm unfram Ns = Ns Cm on
 switches channel to unframed G.703 mode.
-.Ar unfram=off
-switches channel to framed E1 (G.704 mode). 
-.It scrambler=on, scrambler=off
-Turn on/off the scrambling of G.703 data (Tau32-PCI, Tau-PCI/G.703 and Tau-PCI/2E1,
-Tau-PCI/4E1 in unframed mode only).
-.It use16=on, use16=off
-Turn on/off the usage of 16-th timeslot for data transmission (Tau32-PCI and Tau-PCI E1 family only).
-Normally 16-th timeslot is used for signaling information (multiframing CAS).
-.It crc4=on, crc4=off
-Turn on/off CRC4 superframe mode (E1 only). 
-.It syn=int, syn=rcv, syn=rcv0, syn=rcv1, syn=rcv2, sync=rcv3
-.Ar int
-- use an internal clock generator for G703 transmitter
-(clock master). 
-.Ar rcv
-- use the G703 receiver data clock as the transmit clock
-(clock slave). 
-.Ar rcv0, rcv1, rcv2, rcv3
-- use the G703 receiver clock of the other channel
-(E1 models only). 
-.It dir=<number>
-Binds logical channel to the physical channel (Tau32-PCI, Tau-PCI/2E1 and Tau-PCI/4E1
-only). Using this parameter you could, for example, split E1 physical channel
+.It Cm unfram Ns = Ns Cm off
+switches channel to framed E1 (G.704 mode).
+.El
+.It Sm Cm scrambler No = Bro Cm on , off Brc Sm
+Turn on/off the scrambling of G.703 data.
+(Tau32-PCI, Tau-PCI/G.703 and Tau-PCI/2E1,
+Tau-PCI/4E1 in unframed mode only.)
+.It Sm Cm use16 No = Bro Cm on , off Brc Sm
+Turn on/off the usage of 16-th timeslot for data transmission.
+(Tau32-PCI and Tau-PCI E1 family only.)
+Normally 16th timeslot is used for signaling information (multiframing CAS).
+.It Sm Cm crc4 No = Bro Cm on , off Brc Sm
+Turn on/off CRC4 superframe mode.
+(E1 only.)
+.It Sm Cm syn No = Bro Cm int , rcv , rcv0 , rcv1 , rcv2 , rcv3 Brc Sm
+.Bl -tag -width ".Cm rcv3"
+.It Cm int
+use an internal clock generator for G703 transmitter
+(clock master).
+.It Cm rcv
+use the G703 receiver data clock as the transmit clock
+(clock slave).
+.It Cm rcv0 , rcv1 , rcv2 , rcv3
+use the G703 receiver clock of the other channel
+(E1 models only).
+.El
+.It Cm dir Ns = Ns Ar number
+Binds logical channel to the physical channel.
+(Tau32-PCI, Tau-PCI/2E1 and Tau-PCI/4E1 only.)
+Using this parameter you could, for example, split E1 physical channel
 into several channels.
-.It ts=interval
-Set up the list of timeslots to use by the channel (E1 only). The
+.It Cm ts Ns = Ns Ar interval
+Set up the list of timeslots to use by the channel (E1 only).
+The
 timeslots are numbered from 1 to 31, and are separated by comma or minus sign,
-giving an interval. For example: "ts=1-3,5,17". 
-.It pass=interval
-Set up the list of timeslots, translated to the E1 subchannel in cfg=B and
-cfg=C configurations (Tau/E1 only). 
-.It debug=0, debug=1, debug=2
+giving an interval.
+For example:
+.Dq Li ts=1-3,5,17 .
+.It Cm pass Ns = Ns Ar interval
+Set up the list of timeslots, translated to the E1 subchannel in
+.Cm cfg Ns = Ns Cm B
+and
+.Cm cfg Ns = Ns Cm C
+configurations.
+(Tau/E1 only.)
+.It Sm Cm debug No = Bro Cm 0 , 1 , 2 Brc Sm
 Turn on/off debug messages.
-.Ar 0
-- turn off debug messages.
-.Ar 1
-- turn on debug
+.Bl -tag -width 2n
+.It Cm 0
+turn off debug messages.
+.It Cm 1
+turn on debug
 messages, equal to the
-.Ar debug
+.Cm debug
 option to the
 .Xr ifconfig 8
 utility.
-.Ar 2
-- high intensive debug message, developers only.
+.It Cm 2
+high intensive debug message, developers only.
+.El
 .El
 .\"--------------------------------------------------------------
 .Sh EXAMPLES
@@ -322,7 +422,8 @@ ifconfig ct0 200.1.1.1 200.1.1.2 up
 .Ed
 .Pp
 Set up the channel 1 for the leased line link using data-only
-null-modem cable (or modems like Zelax+ M115). Synchronous DPLL mode, 128000
+null-modem cable (or modems like Zelax+ M115).
+Synchronous DPLL mode, 128000
 bits/sec, protocol PPP/HDLC, NRZI encoding (for Sigma):
 .Bd -literal -offset indent
 sconfig cx1 ppp 128000 nrzi=on dpll=on
@@ -331,125 +432,144 @@ ifconfig cx1 158.250.244.2 158.250.244.1 up
 .\"--------------------------------------------------------------
 .Sh DIAGNOSTICS
 This section contains description of abbreviations used by
-.Nm sconfig
-while displaying various statistics. For description of options connected with
+.Nm
+while displaying various statistics.
+For description of options connected with
 statistics see above.
 .\"--------------------------------------------------------------
 .Ss Statistics
 When running, the driver gathers the statistics about the channels, which
-could be accessed via sconfig utility or by
+could be accessed via the
+.Nm
+utility or by
 .Xr ioctl 2
 call
-.Ar SERIAL_GETSTAT.
-.Bl -tag -width 10n
-.It Rintr
-The total number of receive interrupts. 
-.It Tintr
-The total number of transmit interrupts. 
-.It Mintr
-The total number of modem interrupts. 
-.It Ibytes
-The total bytes received. 
-.It Ipkts
-The total packets received (for HDLC mode). 
-.It Ierrs
-The number of receive errors. 
-.It Obytes
-The total bytes transmitted. 
-.It Opkts
-The total packets transmitted (for HDLC mode). 
-.It Oerrs The number of transmit errors.
+.Dv SERIAL_GETSTAT .
+.Bl -tag -width indent
+.It Va Rintr
+The total number of receive interrupts.
+.It Va Tintr
+The total number of transmit interrupts.
+.It Va Mintr
+The total number of modem interrupts.
+.It Va Ibytes
+The total bytes received.
+.It Va Ipkts
+The total packets received (for HDLC mode).
+.It Va Ierrs
+The number of receive errors.
+.It Va Obytes
+The total bytes transmitted.
+.It Va Opkts
+The total packets transmitted (for HDLC mode).
+.It Va Oerrs
+The number of transmit errors.
 .El
 .\"--------------------------------------------------------------
 .Ss E1/G.703 Statistics
 For E1 and G.703 channels the SNMP-compatible statistics data are gathered
-(see RFC 1406). It could be accessed via sconfig utility or by ioctl(2) call
-.Ar SERIAL_GETESTAT .
-.Bl -tag -width 10n 
-.It Unav (uas)
+(see RFC 1406).
+It could be accessed via the
+.Nm
+utility or by
+.Xr ioctl 2
+call
+.Dv SERIAL_GETESTAT .
+.Bl -tag -width indent
+.It Va Unav Pq Va uas
 Unavailable seconds - receiving all ones, or loss of carrier, or loss of
 signal.
-.It Degr (dm)
+.It Va Degr Pq Va dm
 Degraded minutes - having error rate more than 10e-6, not counting unavailable
 and severely errored seconds.
-.It Bpv (bpv)
-HDB3 bipolar violation errors. 
-.It Fsyn (fse)
-Frame synchronization errors (E1 only). 
-.It CRC (crce)
-CRC4 errors (E1). 
-.It RCRC (rcrce)
-Remote CRC4 errors: E-bit counter (E1). 
-.It Err (es)
+.It Va Bpv Pq Va bpv
+HDB3 bipolar violation errors.
+.It Va Fsyn Pq Va fse
+Frame synchronization errors (E1 only).
+.It Va CRC Pq Va crce
+CRC4 errors (E1).
+.It Va RCRC Pq Va rcrce
+Remote CRC4 errors: E-bit counter (E1).
+.It Va Err Pq Va es
 Errored seconds - any framing errors, or out of frame sync, or any slip events.
-.It Lerr (les)
-Line errored seconds - any BPV. 
-.It Sev (ses)
+.It Va Lerr Pq Va les
+Line errored seconds - any BPV.
+.It Va Sev Pq Va ses
 Severely errored seconds - 832 or more framing errors, or 2048 or more bipolar
-violations. 
-.It Bur (bes)
-Bursty errored seconds - more than 1 framing error, but not severely errored. 
-.It Oof (oofs)
-Severely errored framing seconds - out of frame sync. 
-.It Slp (css)
-Controlled slip second -- any slip buffer overflow or underflow.
+violations.
+.It Va Bur Pq Va bes
+Bursty errored seconds - more than 1 framing error, but not severely errored.
+.It Va Oof Pq Va oofs
+Severely errored framing seconds - out of frame sync.
+.It Va Slp Pq Va css
+Controlled slip second \[em] any slip buffer overflow or underflow.
 .El
 .\"--------------------------------------------------------------
 .Ss E1/G.703 Status
-.Nm sconfig
-utility also prints the E1/G.703 channel status. The status could have the
+The
+.Nm
+utility also prints the E1/G.703 channel status.
+The status could have the
 following values (nonexclusive):
-.Bl -tag -width 10n 
-.It Ok
-The channel is in valid state, synchronized. 
-.It LOS
-Loss of sync. 
-.It AIS
-Receiving unframed all ones (E1 only). 
-.It LOF
-Loss of framing (E1 only). 
-.It LOMF
-Loss of multiframing (E1 only). 
-.It FARLOF
-Receiving remote alarm (E1 only). 
-.It AIS16
-Receiving all ones in timeslot 16 (E1 only). 
-.It FARLOMF
-Receiving distant multiframe alarm (E1 only). 
-.It TSTREQ
-Receiving test request code (G.703 only). 
-.It TSTERR
+.Bl -tag -width indent
+.It Li Ok
+The channel is in valid state, synchronized.
+.It Li LOS
+Loss of sync.
+.It Li AIS
+Receiving unframed all ones (E1 only).
+.It Li LOF
+Loss of framing (E1 only).
+.It Li LOMF
+Loss of multiframing (E1 only).
+.It Li FARLOF
+Receiving remote alarm (E1 only).
+.It Li AIS16
+Receiving all ones in timeslot 16 (E1 only).
+.It Li FARLOMF
+Receiving distant multiframe alarm (E1 only).
+.It Li TSTREQ
+Receiving test request code (G.703 only).
+.It Li TSTERR
 Test error (G.703 only).
 .El
 .\"--------------------------------------------------------------
 .Sh SEE ALSO
-.Xr stty 1
-.Xr ioctl 2
-.Xr sppp 4
+.Xr stty 1 ,
+.Xr ioctl 2 ,
+.Xr sppp 4 ,
+.Xr ifconfig 8 ,
+.Xr route 8 ,
 .Xr spppconrol 8
-.Xr ifconfig 8
-.Xr route 8
 .\"--------------------------------------------------------------
 .Sh HISTORY
 This utility is a replacement of utilities
 .Nm cxconfig
 and
 .Nm ctconfig
-that was used in past with FreeBSD drivers. Those two utilities and the present
-utility are not compatible. And therefore all scripts should be rewritten. More
-over, Linux and FreeBSD version of present utility not fully compatible.
+that was used in past with
+.Fx
+drivers.
+Those two utilities and the present
+utility are not compatible.
+And therefore all scripts should be rewritten.
+More over,
+.Tn Linux
+and
+.Fx
+version of present utility not fully compatible.
 .\"--------------------------------------------------------------
 .Sh BUGS
-All software produced by Cronyx Engineering is thoroughly tested. But
-as created by the man it can contain some
-.So
-BUGS
-.Sc .
+All software produced by Cronyx Engineering is thoroughly tested.
+But
+as created by the man it can contain some bugs.
 If you have caught one, try to localize it and send a letter with description
-of this bug and all operation that you have done. We will try to reproduce
+of this bug and all operation that you have done.
+We will try to reproduce
 an error and fix it.
 .\"--------------------------------------------------------------
 .Sh CONTACT
-E-mail: info@cronyx.ru
+E-mail:
+.Aq info@cronyx.ru
 .Pp
-http://www.cronyx.ru
+.Pa http://www.cronyx.ru