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700-712-100-01, Revision 01
System Configuration
UTU-712 and ETU-762 List 1
May 10, 1999
23
To connect and configure a maintenance terminal:
1
Connect a serial cable from the maintenance terminal 9-pin COM port to the line or desktop unit console port
connector (
). Ensure the Data Terminal Ready (DTR) signal from the terminal is connected as the
HDSL card will not communicate without it. Data Terminal Ready (DTR) may also be asserted by connecting
the DSR output signal (pin 6) to the DTR input (pin 4).
Figure 13.
Connecting a Maintenance Terminal to a Line Unit
2
Configure the maintenance terminal for the following communication settings:
•
VT100 Emulation or ANSI (if VT100 is not available)
•
clear the modem initialization string if supported by the terminal
•
Bits per second: 1200, 2400, 4800, 9600 (default), or 19200 bps (recommended)
•
Data bits: 8
•
Parity: None
•
Stop bits: 1
•
Flow Control: None
If using a PC and Microsoft Windows terminal emulation program, deselect “Show Scroll Bars and Use Function,
Arrow, and Ctrl Keys” from the Settings Terminal Preferences menu for Windows 3.1 or from the Properties menu
for Windows 95.
M
ODEM
C
ONNECTION
For remote access to the line unit, an auto-answer modem can be connected to the console port. Use a null modem
cable to connect the HiGain-ETSI line unit and the modem.
Maintenance terminal
Line unit
Interface cable
Console port
9-pin COM port
PairGain