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Radionics, Inc., 1800 Abbott Street, Salinas, California 93901 Customer Service: (800) 538-5807
D2412 Terminal Quick Reference
Terminal
Description
1,2
16.5VAC
16.5 VAC
Connect D1640, 16.5, 40VA Transformer for primary power.
3
∇
Earth Ground
Connect to earth ground. A cold water pipe or grounding rod is
preferred. Do not connect to telephone or electrical ground.
4
+Alrm
+ Alarm Output
Continuous positive output provides 1.85 Amps at 10.2 10 13.9 VDC.
Protected against overcurrent by self resetting device.
5
Alrm-
- Alarm Output
Switched negative output for steady or pulsed (temporal code 3) alarm
output.
6
Data
Data
Data for keypads and point expanders.
7
+Aux
+ Aux Power
Positive output for continuously powered devices, 1.0A at 10.2 to 13.9
VDC. Protected against overcurrent by self resetting device.
8
Aux-
- Aux Power
Negative (common) for Aux Power and Relay Outputs.
9
Ext1
External Relay 1
Connect D133 or D134 relay for Form C Dry Contact.
10
Ext2
External Relay 2
Connect D133 or D134 relay for Form C Dry Contact.
11
1+
Positive Point 1
Positive Power for Point 1. Switched for sensor reset. Use for approved
2 wire smoke or glass break detectors.
12
1-
Negative Point 1
Negative Power for Point 1.
13
Com
Common
Common for Point 2.
14
2
Point 2
Input for Point 2.
15
3
Point 3
Input for Point 3.
16
Com
Common
Common for Points 3 and 4.
17
4
Point 4
Input for Point 4.
18
5
Point 5
Input for Point 5.
19
Com
Common
Common for Points 5 and 6.
20
6
Point 6
Input for Point 6.
21
T
Tip
Tip of incoming phone line.
22
T1
Tip1
Tip of phone line to premises phone.
23
R1
Ring1
Ring of phone line to premises phone.
24
R
Ring
Ring of incoming phone line.
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