Specifications

Page 16–8
FOCUS System Manual
Fig 16–5. Low Speed Data (232) Interface Module Component Location. (1503B20A).
FOCUS
FIBER OPTIC COMMUNICATIONS FOR UTILITY SYSTEMS
RXD
PIN 2
232 Module with Female DB-9
SEL 2020/2030 (Data Onlly)
SEL 2100 (Data Only)
SEL 300 Series Relay (exc. 321)
SEL 400 Series Relays
TXD
PIN 3
GND
PIN 5
RTS
PIN 7
CTS
PIN 8
(No connections on pins 1, 4, 9)
Fig 16–6. Low Speed Data (232) Module Pin-outs to SEL Relays.