Installation guide

B-11Remote Annex 4000 Hardware Installation Guide
Appendix B Cables and Connectors
Loopback Connectors
10Base2 Ethernet
Loopback
Connector
The 10Base2 loopback connector is a 22-Ohm BNC terminator plug.
The connector comprises a 22-Ohm resistor connected between the
BNC plug’s center coaxial line and shield.
10Base5 Ethernet
Loopback
Connector
The 15-pin male Ethernet 10Base5 loopback connector is equipped
with an LEDthat confirms the presence of the +12-volt transceiver
drive voltage.
Table B-5 shows this connector’s pin/signal allocations.
Table B-5. 10Base5 Ethernet Loopback Connector
10BaseT Ethernet
Loopback
Connector
Table B-6 lists the 10BaseT Ethernet connector’s pin/signal
allocations.
Table B-6. 10BaseT Ethernet Loopback Connector Wiring
Pin Number
Remote Annex
4000 Signal
Connects to Pin
Number Signal
3 Transmit + 5 Receive +
10 Transmit – 12 Receive –
Pin Number
Remote Annex
4000 Signal
Connects to Pin
Number Signal
1 Transmit + 3 Receive +
2 Transmit – 6 Receive –