Unit installation
Smart Output Module 
Page 8 
6.2 Connection Assignments 
Name 
Symbol 
Description 
Output  Out  If the supply voltage falls below 
10.0 VDC +/- 0.5V, this output switches off. 
Typically, this output is connected to A-, if it is 
necessary to switch the AUX relay before the 
switching functions fail. This is an open collector 
output. 
Isolated digital input  I- 
I+ 
Not used at this time 
Bus connection to the 
type SREL.ADV 
Smart Relay 
A 
B 
C 
These terminals are connected to the terminals 
with the same names on the type SREL.ADV 
Smart Relay. 
Outputs 1a 
1b 
2a 
2b 
3a 
3b 
4a 
4b 
Floating outputs (make contacts) that are 
switched depending on the transponder 
authorisation. 
Outputs or 
connections for 
signalling 
5a 
5b 
6a 
6b 
7a 
7b 
8a 
8b 
Depending on the configuration 
Either: 
floating outputs (make contacts), that are 
switched depending on the transponder 
authorisation. 
Or: 
floating connections that generate an alternating 
signal when the assigned output is activated. 
Assignment: 
1 Æ 5 
2 Æ 6 
3 Æ 7 
4 Æ 8 
Name Symbo
l 
Description 
Ground    Connection for the power supply ground 
Plus  +  Connection for +12 VDC 
AUX relay coil  A- 
A+ 
To switch the AUX relay, this coil must be 
supplied with 12 VDC. 
AUX relay contacts  K1 
K2 
Floating outputs (make contacts) of the AUX 
relay. 










