User's Manual

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620021-0 Rev. A
3.1.1 RJ-45 Connectors
The eight RJ-45 connectors on the Hub are for the Cat-5/6 ScTP cables that are used
to transmit and receive signals to and from RAUs. Use shielded RJ-45 connectors on
the Cat-5/6 cable.
NOTE: For system performance, it is important that you use only Cat-5/6 ScTP
(screened twisted pair) cable with shielded RJ-45 connectors.
The Cat-5/6 cable also delivers DC electrical power to the RAUs. The Hub’s DC
voltage output is 36V DC nominal. A current limiting circuit is used to protect the
Hub if any port draws excessive power.
3.1.2 Communications RS-232 Serial Connector
Remote Monitoring
Use a standard serial cable to connect a modem to the 9-pin D-sub male serial con-
nector for remote monitoring or configuring. The cable typically has a DB-9 female
and a DB-25 male connector. See Appendix A.3 on page A-3 for the cable pinout.
Local Monitoring
Use a null modem cable to connect a laptop or PC to the 9-pin D-sub male serial con-
nector for local monitoring or configuring. The cable typically has a DB-9 female
connector on both ends. See Appendix A.4 on page A-4 for the cable pinout.