Document 15666 Rev. D 9/19/96
18
Figure 5-2 Wiring the NIB/System 500 network
(Refer to Table 1-2 for circuit ratings)
SW2:
SIZE Switch
SW3 and SW:
START ADDRESS
Switches
MPS-24BPCA
P2
Main Power Harness
#75099.
NIB-96
CPU-500
- +
TB2
EIA-485 Loop
EIA-485 Loop OUT
Main Power Harness
SLC Loop from AIM-200 in System 500
Size Settings
Set the rotary decimal SIZE switch on the NIB to the capacity of the System 500.
The SIZE of the System 500 can be 8 (eight CPU points only), 16 (eight CPU points
and eight zones) or 24 (eight CPU points and 16 zones). Normally the SIZE switch
is set to 1,2 or 3. However, if the master panel must
control the output of IC-4L/ICR-4L modules, the
SIZE switch should be set to 6 (one IC-4L/ICR-4L
using points 41-44) or 7 (two IC-4L/ICR-4L using
points 41-44 and 49-52). Note that setting the
SIZE switch to 6 or 7 will result in a substantial
loss of usable system point capacity since several
intermediate points (i.e. 25 to 40) are lost.
Note: All connections shown are
power-limited
Terminal Assignments
SLC Loop IN
From: AIM-200 SLC Loop Out
To: NIB-96 P5 terminals 1(+) and 3(-)
EIA-485 Loop IN
From: CPU-5000 TB2 terminals 2(+) and 1(-)
To: NIB-96 P4 terminals 5(+) and 3(-)
SLC Loop Out
From: NIB-96 P5 terminals 5(+) and 7(-)
To: Next device on SLC Loop
EIA-485 Loop OUT
From: NIB-96 P4 terminals 6(+) and 4(-)
To: Next device on EIA-485 Loop
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