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Installation Instructions
CERBERUS PYROTRONICS
Model NIM-1M
Network Interface Modem Module
Cerberus Division
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 XNET 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 information 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 REMOTE. Program the
NIM-1Ms as shown in Table 1.
1ELBAT
sM1-MINEHTGNIMMARGORP
LACOLM1-MINETOMERM1-MIN
1PJ
2PJ
3PJ
NO
NO
FFO
1PJ
2PJ
3PJ
NO
FFO
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.
Figure 1
NIM-1M Module Board
Siemens Building Technologies, Inc.
8 Fernwood Road
Florham Park, New Jersey 07932
P/N 315-099105-1
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.
Siemens Building Technologies, Ltd.
50 East Pearce Street
Richmond Hill, Ontario L4B 1B7 CN
Page 2
P2
1
2
3
TB1
P1
JP2
JP3
JP1
BOARD
Figure 2
Installing the Spacers on the NIM-1M Module Board
NIM-1W
MW
JP4
1
87654321
SW1
JP2
12
9
10
D4 D5
ANY
ANY
TRBL
ENABLE
NIM-1M
INSERT 4 NYLON SPACERS
IN HOLES
IN POSITIONS INDICATED BY ARROWS
ON UNDERSIDE OF
P2
1
2
3
TB1
P1
NIM-1M
JP2
JP3
JP1
P6
+
–
W
X
87654321
SW2
JP1
D8
XMIT
Figure 3
Mounting the NIM-1M Module Board on the NIM-1M Module Board
ELECTRICAL CONNECTIONS
Note: All connections to the NIM-1W / NIM-1M
board set are power limited to NFPA 70 per
NEC 760. All connections are also supervised.
NIM-1M Modem Connections
Modem connection to the NIM-1M can be made
through the standard RJ11 jack (P2) or through TB1
(refer to Figure 2). If TB1 is used, connect TB1-1 TIP
Local to TB1-1 TIP Remote and TB1-2 RING Local
to TB1-2 RING Remote. P1 is for factory use only.
TB1 terminal assignments are as follows:
TB1-1 TIP
TB1-2 RING
TB1-3 LOCAL EARTH GROUND
TB1-3 must be connected to local earth ground. If
shielded cable is used, connect shield to local earth
ground at one side of modem connection only.
Note: When an MXL XNET network using the model
Refer to the NIM-1W Installation Instructions, P/N
315-099106, to continue with the installation of the
NIM-1W / NIM-1M board set.
NIM-1W with model NIM-1M board set is
brought on line, there may be some delay in
network communications while the modems
on the model NIM-1M board establish communications. This may cause a temporary
system trouble which can be cleared once
communications are established.
P/N 315-099105-1
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