Notifier HS-NCM Installation Documentation page 10

From previous
node, Port B
TB4
CH. A
– +
Note: Wiring from the HS-NCM-W that is installed outside the building:
• Cannot exceed 1000m (3280 ft.).
• Must be in conduit and is to be buried in a trench separate from any power lines.
• Cannot cross any power lines.
Switch Functions: Ground Fault Detection.

For UL 864 applications, enable ground fault
detection by setting EF switches "on":
SW4.1 for Channel A, and SW4.2 for Channel B.
Correct configuration depends on your network
design; for an explanation of design concepts, refer to
the High-Speed Noti•Fire•Net™ Manual.
Ground faults are detected when the resistive value
reaches 0 ohms.
Ground Fault monitoring is performed by the FACP
associated with the HS-NCM.
NOTE: Ground fault detection must be enabled for UL 864 applications and for ULC applications.
10
TB5
CH. B
– +
Figure 7 The HS-NCM-W
TB4-1 CH-A (+)
TB4-2 CH-A (-)
TB5-1 CH-B (+)
TB5-2 CH-B (-)
Table 2 NOTI•FIRE•NET™ Connections: HS-NCM-W
TB4
CH. A
– + – +
Channel-A Driver/Receiver
Channel-A Driver/Receiver
Channel-B Driver/Receiver
Channel-B Driver/Receiver
Ground Fault
Detection Switches
Figure 8 HS-NCM-W Switches
HS-NCM Installation Document — P/N 54014:B2 04/25/2014
To next node,
Port A
TB5
CH. B