Zhone Technologies 900 - Manual (Page 130)

5-16 IMACS System Release 5.1.6 Data Cards
Model No. Running Head BRI Card User Screens and Settings BRI Card
D TS
The D TS setting identifies the time slot on the WAN link for the D-channel assigned to this
port for brite circuits. Values range from 1-24 for T1 links and 1-31 for E1 links. Time slot 16
is not available on E1 links that are programmed for cas or ccs signaling.
D SUBCHAN
The D Subchannel option allows you to use a full DS0 time slot for the D-channel, or split that
time slot into four 16 kbps sections to allow D-channels to be combined into a single 64 kbps
time slot. If a full time slot is used for the D-channel, only bits 0 and 1 are used; the rest of the
bits are unused. Options are off, 1, 2, 3 or 4 for lt and nt mode and n/a for lunt and lult mode.
WARNING!
D-subchannels must be used on the same BRI card only.
LOCAL LB
The Local Loopback setting controls the direction of the local loopback. The settings are off
(no loopback), ta (loopback toward the DSL or U interface) and net (loopback toward the
WAN) for lt and nt mode and n/a for lunt and lult mode.
LB CHAN
The Loopback Channel setting places the local loopback on either B1 (the first B-channel),
B2 (the second B-channel), or B1+B2 (both B-channels).
LBGEN MD
The Loopback Generation Mode specifies the type of loopback to be placed on the circuit. The
BRI card only generates loopback codes, it does not detect loopback codes. The options are
ddsT (DDS loopback on the terminal side of the line), ddsN (DDS loopback on the network
side of the line), v54T (V.54 loopback toward the terminal), v54N (V.54 loopback toward
network), ft1T (fractional T1 loopback toward the terminal), ft1N (fractional T1 loopback
toward the network), and eoc (embedded operations channel) allows loopback towards the U
interface for the BRI-U and BRI-SC cards).