Cisco bpx-8620 ユーザーガイド
15-10
Cisco BPX 8600 Series Installation and Configuration
Release 9.3.0, Part Number 78-10674-01 Rev. D0, July 2001
Chapter 15 Connecting Temporary Terminal and Attaching Peripherals
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.
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
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.
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.
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.
cables and setup procedures.
If the BPX switch is equipped with redundant BCCs, you must use an RS-232 Y-cable for these
connections.
connections.
See Table 15-6 for modem interface requirements.
Table 15-6 Modem Interface Requirements
Parameter
Requirement
BPX switch Port
Used:
Used:
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.
AUXILIARY port on a BCC back card is used for auto-dial modem setup.
Code:
Standard 8-bit ASCII, 1 stop-bit, no parity.
Interface:
RS-232 DCE.
Cable to modem:
Null modem cable: CONTROL or AUXILIARY port to modem (DCE to
DCE)
DCE)
Phone Lines:
Dedicated, dial-up business telephone line for Customer Service-to-BPX
switch modem.
switch modem.
Data Rate:
All standard asynchronous data rates from 300 to 19200 bps,
independently software-selectable.
independently software-selectable.
Supported Modems:
Motorola V.34R 28.8 baud modem with or without talk/data button.