
Cerberus Division
P/N 315-099105-1
Siemens Building Technologies, Inc.
8 Fern ood Road
Florham Park, Ne Jersey 07932
Siemens Building Technologies, Ltd.
50 East Pearce Street
Richmond Hill, Ontario L4B 1B7 CN
Installation Instructions
CERBERUS PYROTRONICS
Model NIM-1M
Network Interface Modem Module
OPERATION
The CERBERUS PYROTRONICSTM Model NIM-1M
plug-in modem board mounts to and is connected to
the NIM-1W board to provide modem communication
capability for an MXL System XN T network.
The modem transmission line connected to the
NIM-1M can only be Style 4 and can be made using
standard 18 AWG shielded twisted pair or data grade
phone lines.
Note: A pair of NIM-1W / NIM-1M board sets is
referred to as a bridge in this document.
INSTALLATION
Remove all system power before installation,
first battery and then AC. To power up, connect AC
first, then the battery.
Setting the Switches
Before mounting the NIM-1M modem module on the
NIM-1W, set all the switches and configuration
jumpers on both modules. Refer to the NIM-1W
Installation Instructions, P/N 315-099106 for informa-
tion on setting the switches on the NIM-1W.
NIM-1M SETTINGS
The NIM-1M has three configuration headers (refer
to Figure 1). The NIM-1Ms are always connected in
board sets, or pairs, with NIM-1Ws to form the
bridge. Designate one board set as NIM-1M LOCAL
and the other as NIM-1M R MOT . Program the
NIM-1Ms as shown in Table 1.
1ELBAT
sM1-MINEHTGNIMMARGORP
LACOLM1-MINETOMERM1-MIN
1PJ NO 1PJ NO
2PJ NO 2PJ FFO
3PJ FFO 3PJ NO
Mounting
The NIM-1M is mounted on the NIM-1W with 4 nylon
spacers.
1. Snap the 4 nylon spacers into place in the holes
on the underside of the NIM-1M board in the
positions indicated in Figure 2.
2. Position the 4 spacers on the NIM-1M over the 4
holes on the component side of the NIM-1W.
Refer to Figure 3 for representative location of
the NIM-1M on the NIM-1W. Press the spacers
firmly into place in the NIM-1W one at a time.
Cable Connections from NIM-1M to NIM-1W
The NIM-1M has a cable attached to the underside
of the board that connects to JP2 of the NIM-1W.
The cable plug is polarized and connects one way
only. Refer to Figure 3 for the location of JP2.
Figure 1
NIM-1M Module Board