Nt8D22 System Monitor- Pin Assignments At J3 - Nortel Meridian 1 Manual

Page 98 of 500 Configuring the system monitor
Table 10
NT8D22 System Monitor— pin assignments at J3
Pin Direction
1 out
2 out
3 out
4 —
5 in
6 —
7 out
8 out
9 —
Note: Pins 6, 8, and 9 should be connected and grounded at the MDF.
553-3001-210 Standard 14.00 June 1999
4 For PFTU or external alarm cabling, connect a system monitor to MDF
cable:
• Connect a system monitor to MDF cable to connector J3 on the
master system monitor.
• Connect the cable at the Meridian 1 alarm termination area at the
MDF. See Table 10 for the terminating sequence.
Note 1: The system monitor to MDF cable is available in three lengths:
NT8D46BH (32 ft), NT8D46EH (100 ft), and NT8D46DH (150 ft).
Note 2: If additional contact closures are required through the J3
REMALMA or REMALMB leads (for a hard alarm in case a column
loses power, for example), additional system monitor to MDF cables can
be ordered.
Color Signal name
BL/W REMALMA
OR/W REMALMB
GR/W CE-SYSLT
BR/W MDF0/GND
SL/W CEALMIN
BL/R SYSLTIN
W/BL LFBEN
W/OR LFBENR
W/GR GND
Description
Remote major alarm (connect for external alarm)
Remote major alarm return (connect for external
alarm)
CE system line transfer (upgraded systems only)
MDF return (ground)
CE alarm (upgraded systems only)
System line transfer in (upgraded systems only)
Line forced bypass enable (connect for PFTU
operation)
Line forced bypass enable return (connect for
PFTU operation)
Ground