MODEL: 22LS1

22LS1 SPECIFICATIONS

ES-6557 Rev.6 Page 1/7

http://www.m-system.co.jp/

Telemetering System

MODEM INTERFACE

(SIN-NET use)

Functions & Features

• Interfacing between SIN-NET devices (models:

22LA1, DLA1) and a modem for leased circuit

• Simple configuration by setting Station No. for pairing

units with the front rotary witches

• Combined with M-System's modems for leased circuit

Typical Applications

• 1-to-1 transmission system

• 1-to-N transmission system

144

(5.67)

80

(3.15)

mm (inch)

50

(1.97)

8

7

6

5

4

3

2

1

RS-232-C

SA1

SA2

RUN

PWR

3 45

2

3 45

2

MODEL: 22LS1–3–[1]

ORDERING INFORMATION

• Code number: 22LS1-3-[1]

Specify a code from below for [1].

(e.g. 22LS1-3-K)

TRANSMISSION MEDIA

3: Twisted-pair cable for small-scale system

[1] POWER INPUT

AC Power

K: 85 – 132 V AC

(Operational voltage range 85 – 132 V, 47 – 66 Hz)

L: 170 – 264 V AC

(Operational voltage range 170 – 264 V, 47 – 66 Hz)

DC Power

S: 12 V DC

(Operational voltage range 12 V ±10 %, ripple 10 %p-p max.)

R: 24 V DC

(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)

RELATED PRODUCTS

• Multi-transmission module

Model: 22LA1

• RS cable

Model: DCN5

• Modem

Model: MOD1, MOD2, MOD3x, MOD4, MOD5, MOD6, MOD7,

MOD8

GENERAL SPECIFICATIONS

Construction: Plug-in

Connection

Power input: M3.5 screw terminals

SIN-NET, RUN contact output: Euro type connector

terminal block

RS-232-C: 9-pin D-sub connector (female)

(M2.6 x 0.45 connector screw)

Housing material: Flame-resistant resin (black)

Isolation: RS-232-C to SIN-NET to RUN contact output to

power

DIP switches: selecting modem type (SW1 – 4) and

Master/Slave (SW8)

Terminator: Incorporated (remove jumper pin with those

modules not located at the end of transmission line)

Station No. setting: 2 rotary switches; 00 – FF (256)

Power indicator: Red LED turns ON in normal conditions;

OFF when the voltage level becomes low.

RUN indicator: Red LED turns ON when the selfdiagnosis

proves normal, OFF in an abnormality.

RUN contact output: Contact opens in an abnormality.

125 V AC @ 0.5A (cosø = 1)

30 V DC @ 0.5A (resistive load)

Maximum switching voltage: 250 V AC or 125 V DC

Maximum switching power: 62.5 VA or 60 W

Minimum load: 10 mV DC @ 1 mA

Self-diagnosis

Communication: receiving 'loss of RS-232-C

communication' data; multiplex transmission

error data; network error

CPU: watch-dog timer

Power voltage: detects when the voltage supply to the CPU

drops.

MULTI-TRANSMISSION

Communication: 2-wire, half-duplex

Transmission: conform to RS-422, EIA

Transmission speed: 125 kbps

Data encoding: SDLC

Control procedure: NRZ

Protocol: SIN-NET (M-System's)