RS232-RS485 Convertor Manual V1.02 28/06/01 1
1.0 Overview The RS-232 to RS-485 Convertor module converts RS-232 levels from a PC COM port to
RS-485 levels suitable for interfacing with the Equinox PRO101, PRO104 and PRO108
Production ISP programmers. The module provides an optical isolation barrier between the
PC COM port and the RS-485 bus which serves to protect the PC from ESD damage.
1.1 System Contents
The RS-232 to RS-485 module package should contain the following items:
Quantity
Item description
1 RS232 – RS485 Convertor Module
1 Mains – DC Switchmode Power Supply Adaptor
Order code: Mains Input Voltage & plug type (Vrms):
RS485-C1(UK) UK 3-pin 240V @ 50Hz
RS485-C1(EU) Euro 2-pin 230V @ 50Hz
RS485-C1(US) US 2-pin 110V @ 60Hz
RS485-C1(AS) ASIA 3-pin 240V @ 50Hz
Output voltage: +9.0V DC (regulated) @ 1.5A
1 9-way D to 9-way D PC Serial Cable (1.5m)
1 9-way D to 25-way D PC COM Port Adaptor
1 RJ11 RS485 flat cable (1.5m)
1 RJ11 RS485 flat cable (0.5m)
1 User Manual (RS232 to RS485 Convertor)
Figure 1