MODEL: MDW5-4R

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

MDW5-4R SPECIFICATIONS

ES-8217 Rev.2 Page 2/3

CONNECTION EXAMPLES

Protected Device

M-RESTER

8

9

3

4

M-RESTER

G

Protected Device

3

4

8

9

10

5

5

G

+

–

+

–

SG

SG

10

11

11

RXD

RXD

TXD

TXD

6

7

1

2

1

2

6

7

+

–

+

–

TXD

TXD

RXD

RXD

Grounding

Grounding

*3

*3

*1

*4

*4

*2

*2

*5

*5

*1. Connect Terminals 6 – 7 and 8 – 9 when using a 4-core cable.

*2. This wiring is Not needed for a cable without shield.

*3. Cross wire to Terminal 11 when grounding the shield wire (if necessary).

*4. Leave Terminal 5 when the protected device has no SG (Signal Ground) terminal.

*5. Cross wire to the protected device’s G terminal with Terminal 11 of the surge protector.

Ground only the surge protector if the protected device has no G terminal.

GROUNDING

M-RESTER

PROTECTED

EQUIPMENT

G

G

CROSSOVER WIRE

GROUNDING

(100 ohms or less)

A crossover wire between M-RESTER ground and ground or metallic

housing of equipment is required for protection.

If the protected equipment has no ground terminal, ground the

M-RESTER only.

EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm (inch)

5

4

3

2

1

11

10

9

8

7

6

45 (1.77)

41 (1.61)

[3.3 (.13)]

• When mounting, no extra space is needed between units.

DIN RAIL

35mm wide

5–M3.5 SCREW

7.4 (.29)

6–M3 SCREW

6 (.24)