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Cisco AS5350 Universal Gateway Chassis Installation Guide
78-10754-03 0A
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. Depending on the cable and the adapter used, this port will appear as a DTE or DCE device
at the end of the cable. Your universal gateway arrives with a cable and an adapter to connect a modem
to the auxiliary port. To connect a modem to the auxiliary port, use the RJ-45 rollover cable with the
male RJ-45-to-DB-25 adapter (labeled MODEM).
For detailed information about connecting devices to the auxiliary port, see Chapter 3, “Installing the
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 alarm port are connected to the output of a relay. This relay is controlled by system
software. To configure the Alarm port, refer to the Cisco AS5350 and Cisco AS5400 Universal Gateway
Software Configuration Guide. This document is available on CCO and the documentation CD-ROM
that comes with your universal gateway. (See the “Related Documentation” section on page xii.) With
the alarm ports connected and configured, Cisco IOS software polls every one second to detect the
failure events that are configured and turns ON the alarm when it detects any failure event. See
Appendix C, “Cabling Specifications,” for pinouts and cable specifications.
BITS Port
The BITS port is a coaxial interface that provides external synchronized clocking through a Timing
Signal Generator (TSG). To configure the BITS port, refer to the Cisco AS5350 and Cisco AS5400
Universal Gateway Software Configuration Guide. This document is available on CCO and the
documentation CD-ROM that comes with your universal gateway. (See the “Related Documentation”
section on page xii.) See Appendix C, “Cabling Specifications,” for pinouts and cable specifications.