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Table 12
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.
NN43021-310
Standard 06.01
Configuring the system monitor
Note 1: The system monitor to MDF cable is available in three lengths:
NT8D46BH (9.75 m/32 ft), NT8D46EH (30 m/100 ft), and NT8D46DH
(45 m/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
March 2013
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
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