MODEL: MDW5ALW

MDW5ALW SPECIFICATIONS

ES-8218 Rev.4 Page 4/5

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

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM

1

2

3

4

6

7

8

9

10

11

5

A1

A2

Discharge

Element

Voltage Monitoring

U

V

G

+

–

SHLD

u

v

G

U

V

Voltage

Limiter

Counter

Comparation

Circuit

Voltage

Limiter

Alarm

LED

Series Resistance

5V

12V

Communication

SURGE SIDE

PROTECTED

SIDE

POWER

Cross Wiring

U(+)

V(–)

To

POWER

Grounding

HEAD ELEMENT

BASE

G

*1

Battery 3V

ALARM OUTPUT

NET A, B

■ CONNECTION DIAGRAM

*1. Be sure to use twisted-pair cables.

*2. No polarity.

*3. With shielded twisted-pair cables, connect the shield of the cable to the ‘3’ terminal of the M-Rester for floating, and with the ‘4’ terminal for grounding.

Follow instructions provided with the protected device whether ‘8’ and ‘9’ terminals should be connected or not.

However, if the shield terminal of the protected device is not isolated from NET A / B, DO NOT connect ‘8’ and ‘9’ terminals to the protected device.

Power LED

Discharge

Element

Leakage

Current

Detector

Protected Device

Surge Protector for

Power Supply Line