Pittway NOTIFIER The SYSTEM 5000 Installation Manual page 37

Dummy-Loading unused CPU-5000 circuits
An unused Notification circuit can be terminated with
one dummy-load resistor (illustrated below left) or with
two jumpers (illustrated below right).
4.7K, 1/2-watt Resistors,
Part # 71245.
TB1
Figure 4-5: Connecting the EIA-485 Interface
The control panel communicates with the ACS, AFM, LCD-80, NIB-96, UZC-256, ACM-8R and LDM modules
through the EIA-485 interface on the CPU. The EIA-485 interface is also used to connect to an AMG-1 in Voice
Alarm systems. To get access to the EIA terminal block (which is installed on the lower CPU board), unplug the
right-most terminal block of TB1. NOTE: Twisted shielded cable is required.
EIA-485 Interface
EIA-485 (-)
S5000 15583 Rev. 6/10/96 P/N 15583:
If the Municipal Box Output is not to be
used, it must be terminated with a
dummy-load resistor.
4.7K, 1/2W Resistor
Part # 71245
EIA-485 (+)
Terminate shield of the
twisted shielded pair to the
entrance point of the
cabinet.
37