Siemens TC12 Benutzerhandbuch

 

TC12 Installation, Commissioning & Maintenance Handbook 

 
NOTE.RED LAMP MONITORING is not approved by the Department of 

Transport and should not be used. 

 
If the installation uses the lamp monitoring facility then Current 
monitoring transformers are connected to PL1 on the OTU PC
co

a

 curren

monitor transformers have two wires each, terminated in crimps that push in to the 
co
 

tio

ing. Positions 1

53 and 

54 are unused

of the 50 pins on plug PL1. 

 
Figure 28 shows the p

MU input 1- (PL1 pins 1 

an

 

4

input + and ZXO input - (PL1 pins 49 and 50), correspond to positions 51 and 52 

spectively on the 54 way housing. 

Note - LMU Input 24 (pins 47 and 48) is internally connected to the ZXO input 

 therefore 

connect to either LMU input 24 or the ZXO input. Whichever input is used, 
the other input must not be used for anything else. Under the voltage 
monitoring transformer heading, later in this section the description 
explains how to connect to the ZXO input; if this is used LMU input 24 
must be left unconnected. 

 

and voltage 

B via a 54-way 

nnector housing (p rt number 508/4/26138/004). The

t and voltage 

nnector housing.  

ote - only 50 posi

ns are used on the 54 way hous

, as they do not line up with any 

, 2, 

in out of PL1. LMU input 1+ and L

d 2), correspond to positions 3 and 4 respectively on the 5  way housing. ZXO 

re
 

(pins 49 and 50). The voltage monitoring transformer can

 

50 

49 

1 

2 

End Connector Socket Positions not used 

Polarising Pip 

Connector Viewed from the BACK 

 

 

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Issue 9