Nortel FastRad, Руководство по установке

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5
FastRAD Installation Guide
Requirements
for PC
communication
A PC communicates with a FastRAD either through a modem or
through an RS-232 cable. A modem is used when the PC is
situated at a remote location. An RS-232 cable is used when the
PC is situated near the FastRAD at the customer site.
When you use a PC at the customer site, you must use a 9-pin
cable to connect the PC to the RS-232 port on the FastRAD.
This connector is not supplied with the FastRAD. Table 1 shows
which pins are used to make a connection with the FastRAD.
Note : The FastRAD modem supports V.32/V.32bis protocols
only. We recommend a baud rate* of 9600 or greater be
selected when connecting Norstar PC applications to the
FastRAD remotely using a modem.
*Refers to the PC-Modem DTE speed.
Table 1 – RS-232 Pin configuration
Pin Name Function Direction
1 DCD Data Carrier Detect from FastRAD
2 RXD Received Data from
FastRAD
3 TXD Transmitted Data to
FastRAD
4 DTR Data Terminal Ready to
FastRAD
5 GND Ground -
6 DSR Data Set Ready from
FastRAD
7 RTS Request to Send to
FastRAD
8 CTS Clear to Send from
FastRAD
9 RI Ring Indicator from
FastRAD
855601 Book : 855601 Guide Page 5 Wednesday, October 29, 1997 4:06 PM