Chapter 2: Installation
22 ModuLaser Modular Aspirating Smoke Detector Installation Manual
Table 4: Backplane PCB connectors
PIN Description
, I/P2 - Input (negative)
+ Input (positive)
, O/P2, O/P3 C Output (common)
NC Output (normally closed)
NO Output (normally open)
[1] A SenseNET+ channel 1
B SenseNET+ channel 1
S SenseNET+ channel 1 (shield)
[2] A SenseNET+ channel 2
B SenseNET+ channel 2
S SenseNET+ channel 2 (shield)
[3] + APIC in (positive)
- APIC in (negative)
S APIC in (shield)
[3] + APIC out (positive)
- APIC out (negative)
S APIC out (shield)
A SenseNET channel 1
B SenseNET channel 1
S SenseNET channel 1 (shield)
A SenseNET channel 2
B SenseNET channel 2
S SenseNET channel 2 (shield)
Ribbon cable connector to connect to modules
installed to the left of the module
Ribbon cable connector to connect to modules
installed to the right of the module
G Power supply (earth)
- Power supply (negative)
+ Power supply (positive)
1] If used, end-of-line termination is required for the unused J3 connector.
2] If used, end-of-line termination is required for the unused J5 connector.
[3] Used for connecting an addressable loop.