Instruction manual

61200780L1-1C © 2004 ADTRAN, Inc. 345
ATLAS 800 Series System Manual
7. Insert one strand into the COM connection from the ATLAS and tighten the screw.
8. Insert another strand into either the NC or NO connections and tighten the screw. A chassis ground
connection is also provided.
9. Replace the terminal block.
Figure 1. ATLAS 830 Rear View
Table 1. ATLAS Alarm Relay Connector Pinout
Pin Name Description
1 Normally Closed (NC) Opens when a selected alarm condition is present.
2 Normally Open (NO) Closes when a selected alarm condition is present.
3 Common (COM) Common connection between external circuitry and NC or NO terminal.
4 Chassis Ground (GND)
Slot 2
Slot 1
Slot 3
Slot 4
Slot 6
Slot 5
Slot 7
Slot 8
Alarm Relay
Connector