Cisco Systems 124792, 124778 manual 2-23, 20 Installing an Alarm Cable, Service Loop Tie-off Points

Chapter 2 System Installation

2.4.1 Install the Alarm Cable

Figure 2-20 Installing an Alarm Cable

Service Loop

Tie-off Points

124795

Step 4 Alarm contacts labeled 1 through 4, NO, C, and NC refer to the OFF state of the power system and alarmed condition (Table 2-6).

Table 2-6	Alarm and Jumper Designations
Jumper	Jumper
(System with	(System
LCD)	without LCD)	Alarm Designation	1	2	3	4
J16 (1-3)	J16 (1-3)	Low Voltage	X
J15 (1-3)	J15 (1-3)	Mains Error		X
J14 (1-3)	J14 (1-3)	Module Failure			X
J14 (4-6)	J13 (1-3)	Fuse/Circuit Breaker				X
		Failure

Note Either NO or NC can be used for alarming. Figure 2-20depicts the NC connection in the 1 and 3 positions on the connectors.

Step 5 The terminal blocks (green) will accept 26AWG (0.14mm²) to 22AWG (0.34mm²) cables. Remove the terminal block (Figure 2-20#1).

Step 6 Insert the stripped alarm cables and tighten using a flat screwdriver (Figure 2-20#2). Refer to Figure 2-21(Version 2 of the controller) and Figure 3-4 on page 3-5(Version 1 of the controller) for information on alarm connection locations.

Cisco AC/DC Power System User Guide, R1.0

May 2006 2-23