Eaton RTK 725B range - C Cell Detail (Comms Cell)

INM 725B Rev 21
35
2.20 C Cell Detail (Comm’s Cell)
Cell type C is used to provide:-
Comm’s Card that provides:
• One Isolated RS485 Port via a standard 9-way D-type connector.
• One Isolated 10/100Mb/s Ethernet port via a standard RJ45 connector.
• Rx and TX LED’s on both ports for diagnostic purposes.
• The Comms card contains a CR2032 coin cell (3.0V lithium, 180mAH)
The battery in this comms card can be replaced when it reaches the end of its life. In order to
replace the battery, power down the annunciator, remove the comms card, replace the battery
and refit the comms card. Refer to page 123 for instructions on the disposal of the spent
battery.
CB7515POP1 - COMMS CARD
COMMS CARD VERSION USED IN "C" C
ELLS
(UPPER SLOT)
Rx
PORT 4
REAR VIEW
Tx
C
PORT 2