Bosch DB18C3100R2 Installation Manual page 144

144 en | Connections
OVS interface converter bridge assignment
Exchanging transmit and receive lines
–
–
OPTO pin assignment
Direction
Input -
Input +
Output +
Output -
* depending on BR1/BR2
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.
F.01U.033.308 | V7 | 2009.09
1
ST11
2
2
1
BR2 BR1
1
2
3
OPTO
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
Connection
1
6
5
9
Installation Guide
1 OVS
BR4 2 12 V/24 V connection
3
Warning:
2
1
Disconnect the mains plug before opening the
OVS!
BR5
For 12 V/24 V supply
3
2
BR4: Position 1/2
1
BR5: Position 1/2
−
+
BR6: Position 1/2
BR6
For 230 V supply
BR4: Position 2/3
BR5: Position 2/3
1
2
BR6: Open
3
ST3
V.24
V.24 (ST3) pin assignment
Direction
Transmit/Receive *
Receive/Transmit *
0 V
DiBos/DiBos Micro
Connection
2
3
5
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