NEC SOPHO IP 5000 Command Reference Manual page 140

channel-set
Command Reference Guide
Description
Using the cable command, you can set cable attenuation and length on a
CT1/PRI interface to match the distance of the transmission line. Using the
undo cable command, you can restore the default value
The transmission cable attenuation that the CT1/PRI interface matches defaults
to long 0db.
This command is mainly used to configure the signal waveform for transmission
to satisfy various transmitting needs. In practice, the signal quality received by
the receiving end determines whether this command will be used. If the signal
quality is relatively good, use the default setting. In this case, the CT1/PRI
interface does not need an external CSU device.
Example
Set the length of the transmission cable that the CT1/PRI interface matches to
133 feet.
[NEC-PHILIPS-T1 1/0/0] cable short 133ft
Syntax
channel-set set-number timeslot-list range [ speed { 56k | 64k } ]
undo channel-set set-number
View
CT1/PRI interface view
Parameter
set-number: The number of the channel-set formed by bundling the timeslots of
the interface, which is in the range of 0 to 23.
range: The number of the timeslots that are bundled, which is in the range of 1
to 24. When specifying the timeslots to be bundled, you can specify a single
timeslot by specifying a number, a range of timeslots by specifying a range
between number1-number2, or several discrete timeslots by specifying
number1, number2-number3.
speed { 56k | 64k }: The speed of the timeslot bundle, which is in Kbps. If 56k is
selected, the timeslots will be bundled into N x 56 Kbps bundles, and if 64k is
selected, the timeslots will be bundled into N x 64 Kbps bundles. By default, the
system uses 64k.
Description
Using the channel-set command, you can bundle some timeslots of a CT1/PRI
interface into a channel-set. Using the undo channel-set command, you can
remove the specified channel-set.
By default, no timeslots are bundled into channel-sets.
A CT1/PRI interface is physically divided into 24 timeslots numbered from 1
through 24. In actual applications, all the timeslots can be bundled into multiple
channel-sets and the system will automatically create a serial interface for each
set. This serial interface has the same logic features of synchronous serial
interface.
The serial interface is numbered in the form of serial interface-number:set-
number.
Where, interface-number starts from the maximum serial interface number plus
1, and set-number is the number of the channel-set.
SOPHO
IP 5000/SOPHO IP6000
140