Connectors
J01, J02 Modular jacks for connection of system bus cabling.
J03 Supply voltage.
J04 For connection of A or D-bus via twist
ed-pair wiring when modular bus
cabling cannot be used.
J13 Used for diagnostic testing.
Jumpers
S16 Not used.
LEDs
LED01 (Two LEDs combined in one); LED01A
Green function indicator and
LED01B Red function indicator.
IC-circuits
IC01 Microprocessor, type 80C188EB.
IC08 Module key.
IC13 FLASH PROM contains the software for the main processor.
IC22 RAM memory.
IC54 FLASH PROM, contains the software for the communi
cation processor.
TD 91684GB
16 April 2015 / Ver. G
Installation Guide
T942C and T942C/2 Central Unit
22
2.4 Installation
2.4.1 Mounting
Refer to T942C, see 1.4.1 Mounting on
page 7.
2.4.2 Opening the Housing
Refer to T942C, see 1.4.2 Opening the Housing on
page 8.
2.4.3 Mounting Together with Other Units
Refer to T942C, see 1.4.3 Mounting Together with Other Units on
page 9.
2.4.4 Wiring Runs
Refer to T942C, see 1.4.4 Wiring Runs on
page 10.
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