Alcatel Speed Touch 591s Technical User's Manual page 111

For T1 CE D4 channels connected to CE ESF channels, the system copies the
configured AB bits into the CD bit position in the D4-to-ESF direction (the system
transmits ABAB). In the CE ESF-to-CE D4 direction, the system transmits only the
configured AB bits and ignores the CD bits.
The bit pattern that the system transmits on the data path can be configured.
Table 10-7 lists the configuration options for the data path.
Function
The Speed Touch 591s transmits an 8-character bit
pattern that matches the requirements of a downstream
device. The bit pattern is user configurable.
The Speed Touch 591s transmits an 8-character bit
pattern indicating that the device is out of service at the
end of the link.
The Speed Touch 591s transmits an 8-character bit
pattern indicating a fault on the upstream device.
Procedure 10-10 Configuring, enabling, or disabling trunk
conditioning
1 Enter:
CONFIG — OBJECT — PORT — <U>
Table 10-8 describes fields used in trunk group conditioning.
Field
CH
CODE1
CODE2
DATA
2 Specify the channel, channels, or channel group.
a
Speed Touch 591s Technical Practices
February 2001 90-8785-01
Table 10-7 Data path options for trunk conditioning
Table 10-8 Trunk conditioning fields
Description
The channel number
The first signaling pattern sent out during the first 2.5 s of failure when trunk
conditioning is applied
The signaling pattern transmitted for the remaining duration of the failure, when the
channel is configured to transmit seized fault signaling. The default is 1101.
The data pattern configured for transmission while trunk conditioning is applied
For a single channel, enter:
<channel_id>
where channel_id is a number from 1 to 24 for a T1 CE port and 1 to 31 for an E1
CE port
10 — Configuring the T1/E1 CE port
Bit pattern
Configurable
00011010
01111111
— TRUNK_COND
Softkey
CUSTOM
MUX_OOS
IDLE*
10-13