144
en | Connections
DiBos/DiBos Micro
F.01U.033.308 | V7 | 2009.09
Installation Guide
Bosch Sicherheitssysteme GmbH
OVS interface converter bridge assignment
Exchanging transmit and receive lines
–
Variant 1:
BR1, BR2: Position 1/2
ST3: Pin 2 = transmit line, Pin 3 = receive line
–
Variant 2:
BR1, BR2: Position 2/3
ST3: Pin 2 = receive line, Pin 3 = transmit line
1
OVS
2
12 V/24 V connection
Warning:
Disconnect the mains plug before opening the
OVS!
For 12 V/24 V supply
BR4: Position 1/2
BR5: Position 1/2
BR6: Position 1/2
For 230 V supply
BR4: Position 2/3
BR5: Position 2/3
BR6: Open
OPTO pin assignment
V.24 (ST3) pin assignment
Direction
Connection
Direction
Connection
Input -
1
Transmit/Receive *
2
Input +
6
Receive/Transmit *
3
5
0 V
5
Output -
9
* depending on BR1/BR2
OPTO
V.24
ST3
BR2 BR1
1
2
3
1
2
3
BR6
1
BR5
3
2
1
BR4
ST11
2
3
2
1
−
+
1
2
NOTICE!
For cabling, telephone cables of type J-Y(St)Y 2x2x0.6 are recommended. The cable shielding
must be grounded at the alarm panel side to avoid earth currents.