Section 360-880-202
15
5.4.2. T1 Jacks
The RJ48 connectors on the rear of the ST1U are for the T1-S, east/secondary T1 and west/primary T1.
Table 2. RJ-48C T1 Jack Pinouts
Pin #
Use
1
R (RCV from network)
1 2 3 4 5 6 7 8
2
T (RCV from network)
1 2 3 4 5 6 7 8
3
—
4
R1 (XMIT to network)
5
T1 (XMIT to network)
6
—
7
—
8
—
6.
OPTIONING
This unit comes from the factory with default provisioning, which can be changed through the Network Manage-
ment software (NMS) or the craft terminal interface. See the NMS or craft terminal interface documentation for
procedures. The provisioning options are as follows with the default optioning noted:
Option
Choices
Default
T1 Frame format
Superframe (SF), Extended Superframe (ESF)
ESF
Line Build Out (LBO)
110, 220, 330, 440, 550, 660 ft. OR 0, 7.5, 15, 22dB 0-110 ft.
T1 Line Code
AMI, B8ZS
B8ZS
T1 Loopback Selection
Line Near End, Line Far End, Payload Far End
None
Remote Control Method
None, Occupy One Channel, Facility Data Link (ESF
Format Only)
Facility Data Link
Bypass (Drop and Re-insert
Only)
Auto Bypass, Forced No Bypass
Auto Bypass
7.
ALARMS
This unit provides for alarm contacts for audible and visual alarms. Access to the alarm contacts is provided on
the 360-80 shelf. Pressing the audible alarm cut-off (ACO) switch on the ST1U clears the secondary alarm indica-
tion for the audible alarm contacts, stopping the audible notice of the alarm (the alarm itself is NOT cleared by
pressing the ACO switch). See the shelf documentation for information on wiring. The unit generates alarm indi-
cations based on the configuration of the PRI T1 alarm registers (Normal, CM2, CM3). See section on network
management for more information.
8.
TECHNICAL ASSISTANCE
If technical assistance is required, contact Charles Industries’ Technical Services Center at:
847-806-8500
847-806-8556 (FAX)
800-607-8500
[email protected] (e-mail)
