Download AS2000: The Basics

Hardware Installation
2. Insert the positive wire into the RTN socket of the DC input
connector, and tighten.
3. Insert the ground wire into GND socket and tighten.
4. Install the fuse when all connections are made.
Figure 4-7
Connect the
Power Supply
Alarm
PWR 2940 DC Input Connector
Connect the power supply alarm relay contacts from P3 (POWER
SUPPLY ALMS) on each Multi-line shelf to the office alarm
equipment. Refer to Figure 4-8.
Figure 4-8
Power Supply Alarm Relay Contact Wiring
NC COM NO NC COM NO
NC
COM
Supply A
Alarm
NO
NC
COM
NO
Supply B
Alarm
A normally closed (NC) contact, a normally open (NO) contact, and a
common (COM) lead are provided for each power supply. Applying
power activates the NO and NC contacts. When power to the
equipment is lost or a power supply fails, the relay deactivates,
forcing the NO contacts closed and the NC contacts open. Connect
COM to NC or NO, depending on your office equipment. Torque
connector wire set screws to 4.5 to 8.0 inch lb (0.5 Nm to 0.9 Nm).
4-8
Verilink Access System 2000: The Basics