15
SOCOMEC - Réf. : 874 669 A GB
Modem RS232 <=> RTC <=> RS485
INSTALLATION
LED indicators
LED
Status
Description
TD
OFF
No data
Transmit data
ON / FLASH
The modem receiving data on the DTE interface
RD
OFF
No data
Receive data
ON / FLASH
The modem transmitting data on the DTE interface
RTS
OFF
RTS signal is inactive
Request to send
ON
RTS signal is active
DCD
OFF
DCD signal is inactive
Data carrier detect
ON
DCD signal is active, modem has detected a carrier or the signal is set to always ON
DTR
OFF
DTR signal is inactive
Data carrier detect
ON
DTR signal is active
REL
OFF
Reliable mode is OFF, direct or normal mode
Reliable mode
ON
Reliable mode is ON
FLASH
Reliable mode with error correction and compression
LINE
OFF
The modem is on-hook
ON
The modem is off-hook with an established connection
FLASH
The modem is off-hook and negotiating
PWR
OFF
The modem has no power
Power
ON
The modem is up and running
FLASH
The modem is in the power-on selftest
I / O IN
OFF
The I / O input is inactive
ON
The I / O input is active
I / O OUT
OFF
The I / O output is inactive, C and NC connected
ON
The I / O output is active, C and NO connected
INTER 113 A
