Model 485HF9
Page 7
2. INSTALLATION INSTRUCTIONS
2.1
Requirements of Host Equipment
The Model 485HF9 Adaptor can be plugged into any device with an RS-232 port terminating in
a 9 way D type male connector (DB-9). If the host device is equipped with a 9 way connector, it
is normally male, and the 485HF9 Adaptor can be directly plugged into this port and held in
position by its jack screws.
In addition to the 9 pin standard, many RS-232 interface connectors comply with the DB-25
standard and two types of 485 Adaptor are available from Amplicon Liveline Ltd to mate with
male or female versions of the DB-25 connector. In addition, DIN, mini-DIN and other types of
connector are sometimes used for RS-232 ports. If the pin connections of the host device
interface are known, then enough information is given in this manual to make up a suitable
adaptor connection cable.
2.2
Connections to Model 485HF9 Adaptor
Connections are made to the Model 485HF9 Adaptor at each end. The RS-232 connections are
automatically made when the Adaptor is plugged into the port, and the RS-422/485 data,
control and power connections must be made through a pluggable 8 way screw terminal
connector assembly at the free end.
2.2.1 RS-232 Connections on 9 way D Connector
The connections conform to the RS-232 adopted 9 way pin-out standard, and are shown in
figure 2.1 below. The diagram shows the connector as viewed from the face of the socket
mounted on the Model 485HF9 Adaptor.
FIGURE 2.1
RS-232 CONNECTIONS
1
6
2
7
3
8
4
9
5
Data Set Ready (DSR)
Request To Send (RTS)
Clear To Send (CTS)
Ring Indicator (RI)
Data Carrier Detect (DCD)
Receive Data (RxD)
Transmit Data (TxD)
Signal Ground (SG)
Data Terminal Ready (DTR)
RS-232 connections on 9 way socket
Summary of Contents for 485HF9
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