S0 Bus Wall Socket Cabling/Wiring - Philips SOPHO SuperVisor 25 Engineer's Manual

2.3.2. S Bus Wall Socket Cabling/Wiring
0
Although the S bus connector is a 6 pins type, the S
0
socket. This means that a special cable is required for the connection of the Supervisor to the
wall socket. This cable is delivered together with the console.
The figure below gives an example of the wiring between the DTX-I and the wall socket
together with the Supervisor. In this example circuit 2&3 of the DTX-I are used.
DTX-I
+
TRANSMIT
>
-
+
RECEIVE
<
-
Figure 2-3 Example of S
Figure 2-4 "S0 Bus Wall Socket."
power provision is done via pin 3&6 (positive polarity) and pin 4&5 (negative polarity).
The terminating resistor (100 Ohms) which is depicted in
Cabling with DTX-I."
in the wall socket. The following configuration rules must be applied for the resistor:
- If the cable length is more than 100 m the terminating resistors are mandatory.
- Only one resistor per wire pair may be installed. Check whether resistors are installed in
the wall socket or (if applied) in a Y splitter.
- If the resistors are installed in a splitter or in a wall socket, the cable length between the
resistor and the console may not exceed 100 m.
Note: A splitter with terminating resistor is enclosed in the packing box of the SV25 and SV35.
F122 MDF
T 301 5a
T 302 5b
T 101 1a
T 102 1b
Bus Cabling with DTX-I.
0
depicts an S
and marked with a *, does not necessarily have to be present or installed
bus wall socket is an eight pin modular
0
Wall
Socket
4 R +
*
5 R -
3 T +
*
6 T -
* See text
bus wall socket with the pin assignments. The
0
Figure 2-3 "Example of S0 Bus
Supervisor
RECEIVE
>
TRANSMIT
<
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