Siemens TRAFFIC CONTROLS TC12 사용자 설명서

 

TC12 Installation, Commissioning & Maintenance Handbook 

 

only one  
Digital Output PCB of 

Digital Output PCB faulty 

 not connected 

 

Digital Output PSU fuse blown/faulty 

er

Bs c

owered up. Disconnect the attached cables from the 

CB, push down the latch on the front of the PCB guide and slide the PCB out of 

the rack. Insert the new PCB and reconnect. 
 

If a monitor is attached to the TC12 PC (note the TC12 Instation Test Set can be 
used as the monitor) a number of Help/Diagnostic screens are available in the 
TC12 PC Software. These are described below. 
 

This Screen lists all of the diagnostic and help screens and keys to be pressed to 
activate them. 
 

This screen displays the replies received from the first 22 TC12 OTUs on an 
Instation. It displays each OTU’s reply on a separate line on the screen, OTU 0 at 
top. This screen only shows the first 22 OTUs on an Instation but can be used to 
obtain indication of the health of the system. 
 
The first eight digits on a line are characters indicating what errors were detected 
with the particular OTU reply. The characters represent the errors as follows. 
A = Address error 
M = MT (message transfer) bit set in reply 
N = No reply 
S = Short reply 
C = reply CRC error 
P = parity error (not used in TC12) 
F = framing error in reply 
O = over run error on reply message 
 

 

PSU to Digital Output PCB watchdog ribbon cable
faulty/not connected 

Watchdog Fail LED ON for 

Watchdog ribbon cable faulty 

several 

t Driven 

Watchdog Failure 

Digital Outputs No
 

Digital Output PCB fuse(s) blown 

 Incorrect/faulty 

wiring 

 

Digital Output PSU

 

The modem and transform
replaced whilst the rack is p

 and Digital Output PC

an be removed and 

P

666/HE/43100/000  

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Issue 9