SAF CFM-34-REBM Manual page 50

Alarm interface port specification
Male DB25
1 2
14
The pin assignments for relay outputs are the following:
Pair of pins
Type: NC* or NO**
NC* - Normally Closed
NO** - Normally Open
Input pins:
Pin
GND pins (closest)
Electrical specifications of the outputs of the alarm interface port:
Rated load: 0.5 A at 125 VAC; 2 A at 30 VDC
Max. switching current: 2 A
Max. switching voltage: 250 VAC, 220 VDC
Max. switching capacity: 62.5 VA, 60 W
Electrical specifications of the inputs of the alarm interface port:
Impedance: 4,7 kΩ,
U = 1...2 V DC,
"0"
U = 2,4...48 V DC.
"1"
Modular Fast Ethernet Bridge Management System Technical Description and Configuration Guide
3 4 5 6
17
16
15 19
18
Figure 4. DB25 Male connector pin layout
Output A Output B
1-2 2-14 3-4
NO NC NO
Input A Input B
10 11
22 23
V. 3.12. 1.0 · © SAF Tehnika A/S 2003
7 8 9 10 11
21
20
23
22
Output C
4-16 5-6 6-18
NC NO NC
Input C Input D
12 13
24 25
12 13
25
24
Output D
7-8 8-20
NO NC
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