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Cisco AS5350 Universal Gateway Chassis Installation Guide
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Chapter 2 Preparing to Install the Cisco AS5350 Chassis Preparing to Connect to a Network

Auxiliary Port

The Cisco AS5350 includes an EIA/TIA-232 asynchronous serial auxiliary port (RJ-45) that supports
flow control. Depen di ng on t he cabl e an d th e ad apte r use d, t hi s por t wi ll a ppe ar a s a D TE or DCE device
at the end of the cable. Your universal gateway arrives with a ca bl e an d an a da pt er to con n ect a mo de m
to the auxiliary por t. To connect a m odem to the auxiliary po r t, u se the RJ-45 rollover cable wit h th e
male RJ-45-to-DB-25 adapter (labeled MODEM).
For detailed informatio n about connecting devices to th e au xiliary port, see Chapter 3 , “In sta ll in g th e
Cisco AS5350.” See Appendix C, “Cabling Specifications,” for cable and port pinouts.
2T Serial Ports
Two high speed 12-in-1 serial ports on the rear panel of the Cisco AS5350 provide backhaul WAN and
IP support.
The following types of serial interface standards (in DTE/DCE) are supported:
•EIA/TIA-232
•EIA/TIA-449
•EIA/TIA-530
•EIA/TIA-530A
•EIA/TIA-X.21
•ITU-T V.35
Each interface supports up to 8 Mbps.
Alarm Port
The three pins on the ala rm port are connected to the output of a relay. This relay is control led by system
software. To conf igur e the Alarm port, refe r to the Cis co AS5350 and CiscoAS5400 Universal Gateway
Software Configuratio n Guide. This document is available on CCO and the documentation CD-ROM
that comes with yo ur u niver sal gateway. (See the “Related Doc u m e nt ation” section on page xii.) With
the alarm ports connect ed and configured, Cisco IO S so f tw ar e p ol ls every on e s eco n d to d ete ct the
failure events that are configur ed an d tu rns O N th e al arm when it detects any failure event. See
Appendix C, “Cabling Specifications,” for pinouts and cable specifications.
BITS Port
The BITS port is a coax ia l i nt er fac e t ha t p rovi d es ext er n al s ynch r on iz ed cl oc ki ng t hro ug h a Timin g
Signal Gene ra tor (TSG). To configu re the BITS por t , r e f e r to the Cisco AS5350 and CiscoAS5400
Universal Gateway Software Configuration Guide. This document is available on CCO and the
documentation CD- ROM th at comes with your universal gat eway. (See th e “R e la ted D o cu m en ta ti on ”
section on pagexii.) See Appendix C, “Cabling Specificati ons,” for pinouts and cable specifications.