MODEL: MDP-4R

MDP-4R SPECIFICATIONS

ES-8232 Rev.8 Page 2/4

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

CONNECTION EXAMPLES

Protected Device

MDP-4R

G

C

B

3

2

MDP-4R

G

G

Protected Device

3

2

C

B

A

1

1

G

+

–

+

–

SG

A

LINE

LINE

LINE

LINE

Grounding

Grounding

*1. Leave Terminal A when the shielded twisted-pair cable is not provided.

*2. Leave Terminal 1 when the protected device has no SG (Signal Ground) terminal.

*3. Cross wire to the surge protector’s G terminal when grounding the shield wire.

*4. Cross-over wire between G terminals of the surge protector and the protected device is required.

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

C

B

3

2

MDP-4R

G

+

−

SG

G

A

1

LINE

LINE

3

2

MDP-4R

G

C

B

A

1

Protected Device

G

+

−

LINE

LINE

SG

Grounding

Grounding

Protected Device

*1. Provide electrical insulation with insulating tape and the like so that the live part is not exposed,

as over voltage may generate on the shield wire.

*2. Cross wire to the surge protector’s G terminal when grounding the shield wire.

*3. Cross-over wire between G terminals of the surge protector and the protected device is required.

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 the ground or

metallic housing of the equipment is required for protection.

If the protected equipment has no ground terminal, ground the

M-RESTER only.

When the M-RESTER is mounted with DIN Rail Mounting Adapter,

connect the grounding wire to the mounting screw of the M-RESTER.