socomec 4899 0200, Operating Instructions Manual

Page: 14 / 20

RS232 <=> RTC<=> RS485
Modem
14
SOCOMEC - Réf. : 874 669 A GB
INSTALLATION
Connections
PSTN
Position Product marking
RJ-11C Screw Direction (1) Description RJ-11C Screw
terminal (2) terminal
a NC
b In/Out PSTN Transmit/Receive
Disconnects from “pin c”
when the modem goes
Off-Hook
c 2 In/Out PSTN Transmit/Receive LL2
d 1 In/Out PSTN Transmit/Receive LL1
e In/Out PSTN Transmit/Receive
Disconnects from “pin c”
when the modem goes
Off-Hook
f NC
(1) Direction relative to this unit.
(2) The PSTN screw terminals are shared with 2-wire Leased Line.
NC = Not Connected.
RS232 (DTE)
Position
D-sub Screw Direction (1) Description D-sub description
terminal
No. 1 No. 4 Out Data Carrier Detect (DCD)
No. 2 No. 7 Out Received Data (RD)
No. 3 No. 8 In Transmitted Data (TD)
No. 4 No. 3 In Data Terminal Ready (DTR)
No. 5 No. 1 - Signal Ground (SG)
No. 6 No. 2 Out Data Set Ready (DSR)
No. 7 No. 6 In Request To Send (RTS)
No. 8 No. 5 Out Clear To Send (CTS)
No. 9 No. 9 Out Ring Indicator (RI)
(1) Direction relative to this unit.
1
2
3
4
5
6
7
8
9
RS485
Position Direction
(1)
Description Product marking
No. 3 In/Out T- (A/A’) Tranmit/Receive T-
RS485 2 wire
No. 4 In/Out T+ (A/A’) Tranmit/Receive T+
RS485 2 wire
(1) Direction relative to this unit.
POWER
Position Direction
(1)
Description Product marking
No. 1 In AC: neutral
DC: -voltage
No. 2 In AC: Line
DC: +voltage
(1) Direction relative to this unit.
I / O INPUT / RELAY OUTPUT
Position Direction (1) Description Product marking
No. 1 In Input + +
No. 2 In Input - -
No. 1 In/Out Normal closed contact NC
No. 2 In/Out Common contact C
No. 3 In/Out Normal open contact NO
(1) Direction relative to this unit.
LEASED LINE
Position Direction (1) Description Product marking
No. 1 Out 4-wire Transmit LL1
In/Out 2-wire Receive/Transmit
No. 2 Out 4-wireTransmit LL2
In/Out 2-wire Receive/Transmit
No. 3 In 4-wire Receive LL3
In/Out 2-wire Receive/Transmit at
Leased Line PSTN backup
No. 4 In 4-wire Receive LL4
In/Out 2-wire Receive/Transmit at
Leased Line PSTN backup
(1) Direction relative to this unit.
RS232
(DTE)
I / O
input / relay
output
Power
Led
indicators
I / O
input / relay
output
PSTN
Leased
Line
RS485
INTER 014 A