Siemens 7XV5662-0AB00 Manual page 52

English
q
LED3, RxD
The yellow LED "RxD" signals the received data (optical fibre –R), that comes from the
protection device and is to be transmitted to the mains interface.
q
LED4, Power On
The green LED "Power On" signals the activated auxiliary voltage.
q
Push button
The push button initiates a reset.
Also LEDs 1-3 are activated for the period during which the pushbutton is actuated, and
the DR relay is deactivated if it was activated. This makes possible a functional check of
these signalling elements.
The LED states during putting into operation are shown in the following six steps (for the
structure, see Figure 20).
Here, " * " means any undefined LED state (MAKE / BREAK / FLASHING).
Preconditions for putting into operation:
The jumper positions must correspond to the required operating mode / baud rate in both
CC–S (CC–S 1, CC–S
0 0
Step 1 CC–S 1 is in the Power On state and the opposite terminal CC–S
0
CC–S 1
0
LED1 MAKE
LED2
LED3
LED4 MAKE
Step 2 Apply the interface (X.21 / G703) on CC–S
CC–S 1
0
LED1 BREAK
LED2
LED3
LED4 MAKE
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2).
0
CC–S
LED1
* LED2
* LED3
LED4
CC–S
LED1
* LED2
* LED3
LED4
2
0
BREAK
BREAK
BREAK
BREAK
1
0
2
0
BREAK
BREAK
BREAK
BREAK
2 is in the Power Off state
0
C53000-B1174-C151-1