Network Configurations
6NH7811-0AA22 © Siemens AG 2002 All Rights Reserved
5-20 MD2 Modem (07/2002)
Wiring Adaptation for the Multiple Transformer
When the MD2 modem is connected to a multiple transformer using cable
6NH7700-2AR60 the wiring needs to be adapted. To do this cut the Western
connector at the multiple transformer's end and solder the wires directly on the
multiple transformer. The following table shows the wiring configuration for the
connection to the multiple transformer.
Table 5-13 Pin assignment of the RJ12 Western connector for cable 6NH7700-2AR60
Diagram Pin no. Signal
Name
Signal
Direction
Comments
5 a1
2 b1
bi-directional
Connection of the multiple transformer for the first
2-wire channel
4 a2
3 b2
bi-directional
Connection of the multiple transformer for the
second 2-wire channel
1
)
1 -
6 -
- -
1) Two 4-way transformers can be connected to the MD2, this means that a total of eight 2-wire
dedicated lines can be connected. The MD2 then has to be configured as a 2 x 2-wire terminal
point.
1 2 3 4 5 6
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