Specifications

Appendix A Connector Wiring FOM-40 Installation and Operation Manual
A-4 FOM-40/R with Ethernet Interface, DTE Connection
A.3 T1 Interface Connector
The balanced T1 interface of the standalone unit terminates in RJ-45 connector.
Table A-2 lists the T1 connector pin assignment.
Table A-3. T1 Balanced Connector Pinout
Pin Function
1, 2 Receive (input)
4, 5 Transmit (output)
A.4 FOM-40/R with Ethernet Interface, DTE Connection
FOM-40/R with an Ethernet interface module uses a CIA/ETH interface adapter,
which converts one DB-25 connector to an RJ-45 connector. If you intend to
prepare a DB-25/RJ-45 adapter cable yourself, refer to Figure A-1 and Table A-4 for
the pin designations and their assignment.
7
9
11
12
13
Figure A-1. Pin Designation in the DB-25 Connector of ASM-MN-214 Card Cage
Table A-4. DB-25 and RJ-45 Pinout, Ethernet
Pin
RJ-45 DB-25
Function
3 13 RCV (+)
6 12 RCV (-)
1 11 XMT (+)
2 9 XMT (-)
– 7 GND