Siemens TC12 Manuel D’Utilisation

TC12 Installation, Commissioning & Maintenance Handbook

Figure 16 - Modem and PSU PCB Status LEDs

MODEM BOARD STATUS LEDs

LP1 (RED LED) - +12v

LP2 (RED LED) - -12v

LP3 (RED LED) - +5v

LP4 (YELLOW LED) - MODEM 1 TRANSMIT (TX1)

ECEIVE (RX1)

LP6 (YELLOW LED) - MODEM 2 TRANSMIT (TX2)

LP7 (GREEN LED) - MODEM 2 RECEIVE (RX2)

LP8 (YELLOW LED) - MODEM 3 TRANSMIT (TX3)

LP9 (GREEN LED) - MODEM 3 RECEIVE (RX3)

LP10 (YELLOW LED) - MODEM 4 TRANSMIT (TX4)

LP11 (GREEN LED) - MODEM 4 RECEIVE (RX4)

LP5 (GREEN LED) - MODEM 1 R

PSU BOARD STATUS LEDs

PC POWER

AUDIO OFF

2.4.2 Effect of Incorrect Switch Settings on the PSU PCB

(1)

S1 - PC Address

If this switch is set to a PC number which does not exist, the UTC TCC FAIL
indicator on the local SIP will light up. The traffic control computer will display an
error message to say that the PC is disconnected.

(2)

S2 - Audio Alarm Configuration Switch

666/HE/43100/000

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