Siemens 7XV5654-0BA00 Bedienungsanleitung Seite 52

English
FO-connections R1 and R2
Both optical interfaces operate in positive logic (Light idle state is ´OFF´). An active
optical signal with light ON is seen as an active ON electrical signal at the outputs. To
adapt the device to receivers with negative logic (Light idle state is ´ON´) for each input
a DIP-switch is integrated, which allows the change of the light idle state from OFF to
ON (At DIP-switch S1 with switch 1/2 = ´ON´). The default setting is OFF.
The optical terminals R1 and R2 are equipped with ST-plugs for the connection of
multimode fibre cable. Only one fibre optic thread is required for the connection to the
GPS-Receiver, because the time synchronization signal is transmitted from the receiver
to the Sync.-Transceiver (no return channel).
ATTENTION: The ST plugs are to be shifted with the lateral nose into the groove of the
device connection and locked afterwards. During the installation of the FO - cables the
bending radius specified for the cable is to be kept.
9-pin SUB-D socket X1
At the 9-pin SUB-D socket X1 the electrical 24 V signals are assigned to PIN 1/3
(Channel 1) and PIN 4/8 (Channel 2). The PIN assignment is identical to the IRIG-B
input of the SIPROTEC 4 device (Port A). In most of the relays only PIN 1/3 is used as a
time telegram input. For 7SD52 also PIN 4/8 is used as a second pulse input. Both
outputs are fast semiconductor outputs.
Connection cable to SIPROTEC 4 devices:
For the connection from X1 of to the Sync.-Transceiver to Port A of the SIPROTEC 4
device a Y-bus cable 7XV5104-0AAxx is recommended. The use of such cables avoids
errors in the wiring. With the Y-bus cables an electrical time synchronization bus is built
up by connecting max. 6 cables. With the T-adapter cable 7XV5104-3AA00 two
electrical buses can be assigned together with one Sync.-Transceiver.
Pin assignment of Y-bus cable 7XV5104-0AAxx
The serial connection cable 7XV5104-0 connects output PIN 1/3 from X1 or the
T-adapter cable with input PIN 1/3 of Port A (IRIG-B input) of the SIPROTEC 4 device.
Male-plug sub-D
9-pole pin
1 24 V (Time)
3 GND (Time)
housing connect the screen at the housing
Fig. 10: Pin assignment of Y-bus cable 7XV5104-0AAxx
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Male-plug sub-D
9-pole pin to port A
of the SIPROTEC 4
twisted pair
7XV5654-0BA00
1 3
Female-plug sub-D
C53000-B1174-C168-2
9-pole pin
1
3
housing