Connecting Dial-In And Dial-Out Modems; Table 15-6 Modem Interface Requirements - Cisco BPX-BXM-155-8DX Installation And Configuration Manual

Connecting Dial-In and Dial-Out Modems

Connecting Dial-In and Dial-Out Modems
Cisco Customer Service uses modems to remotely diagnose and correct customer problems with
installed BPX switches. You will need to connect a modem to each BPX switch to provide remote
access.
The modem currently recommended for use with the BPX switch is the Codex Model V.34R. You must
use an auto-answer modem
A dial-in connection to a BPX switch RS-232 from customer service via a modem uses the CONTROL
port of the BPX switch. This port is bi-directional transmit and receive.
A dial-out connection from a BPX switch via a modem to Cisco Customer Service uses the
AUXILIARY port of the BPX switch.
These modems connect to a standard telephone line wall jack. The modem connections require special
cables and setup procedures.
If the BPX switch is equipped with redundant BCCs, you must use an RS-232 Y-cable for these
connections.
See Table 15-6 for modem interface requirements.

Table 15-6 Modem Interface Requirements

Parameter
BPX switch Port
Used:
Code:
Interface:
Cable to modem:
Phone Lines:
Data Rate:
Supported Modems:
Cisco BPX 8600 Series Installation and Configuration
15-10
Chapter 15
Requirement
CONTROL port on BCC back card is used for auto-answer modem setup.
AUXILIARY port on a BCC back card is used for auto-dial modem setup.
Standard 8-bit ASCII, 1 stop-bit, no parity.
RS-232 DCE.
Null modem cable: CONTROL or AUXILIARY port to modem (DCE to
DCE)
Dedicated, dial-up business telephone line for Customer Service-to-BPX
switch modem.
All standard asynchronous data rates from 300 to 19200 bps,
independently software-selectable.
Motorola V.34R 28.8 baud modem with or without talk/data button.
Connecting Temporary Terminal and Attaching Peripherals
Release 9.3.0, Part Number 78-10674-01 Rev. D0, July 2001