Handook page
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Installation Guide
T942C- and T942C/2 Central Unit
Bus Connections via Modular Bus Cabling
Bus Connections via twisted-pairs
2.3.6
2.3.7
2003-01-08 / Rev.C
Pin 1
Pin 8
234567
Figure 29. Modular bus cable pins.
• Connect the modular bus cabling to connectors J01 and J02.
A-bus
D-bus
Figure 30. Twisted-pairs connection.
• A-bus to J04 screw 3 and 4
• D-bus to J04 screw 5 and 6
Connection of Supply Voltage
• Connect supply voltage to connector J03 screw 1 and 2. See also the System
Installation document, under Power Supply.
Supply voltage in
Supply voltage out
to other units
Figure 31. Power supply connection.
FLASH PROMs Containing Software for the Main and Communication
Processors
1
Press the FLASH PROMs containing the software for the main processor, onto IC-
socket IC13.
2
Press the FLASH PROM containing the S942C software for the communication
processor, onto IC-socket IC54.
J01 + J02
Pin
Signal
1
A1
2
A2
3
-
4
-
5
D1
6
D2
7
SP1
8
SP2
J04
1
2
3
4
5
6
J03
1
+12V
2
GND
3
4
5
6
TD 91684GB
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