User's Manual

Installation
Issue 1 November 1998 15
Figure 4. Converter Box—Front View
Two end-of-line (EOL) terminators come with the converter box.
The EOL terminators are attached directly to the wallboards to help
maintain stable communication across a network. See “The EOL
Terminators” on page 19.
Required Parts
■ DB9-to-DB9 RS-232 cable—This 9-pin connector connects
the PC to the converter box. The converter box has a 9-pin
female port.
■ RS-485 cable
■ As necessary, a DB25-to-DB9 adapter for the computer port.
The required parts from the converter kit are:
■ Converter box
■ Converter cable assembly
■ Power supply
POWER
RS-232
RXD
FOR INDOOR USE ONLY
RS-232/RS-485 CONVERTER
RS-232
TXD