MODEL: DAL4

DAL4 SPECIFICATIONS

ES-6782 Rev.2 Page 5/6

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

LIGHTNING SURGE PROTECTION

4

3

2

1

13

14

15

16

9

10

6

5

12

7

11

DAL4-1

8

A

B

C

3

2

1

MDP-DM3

G

A

B

C

3

2

1

G

–

+

DLA1, 22LA1

LINE

–

+

LINE

MDP-DM3

1

2

3

B

C

A

G

PANEL

+

–

+

–

+

–

■MULTIPLEX TRANSMISSION

*

*

*

*Terminating resistor

4

3

2

1

13

14

15

16

9

10

6

5

12

7

11

DAL4-1

8

A

B

C

3

2

1

MDP-DM3

G

A

B

C

3

2

1

G

–

+

DLA2, SMLM

LINE

–

SG

SG

+

LINE

MDP-DM3

1

2

3

B

C

A

G

PANEL

+

–

+

–

+

–

■M-BUS

*

*

*

*Terminating resistor

Shielded

Twisted-pair Cable

Shielded

Twisted-pair Cable

Shielded

Twisted-pair Cable

Notes

• Be sure to use lightning surge protectors (model: MDP-DM3) on twisted-pair cables.

• Be sure to connect the terminal No. 1 of the MDP-DM3 with SG terminal of the DAL4.

• For connecting model DLA1 or 22LA1 with the DAL4 in the same panel, install them between the MDP-DM3 and the DAL4.

Be sure to connect the terminal No. 1 of the MDP-DM3 with SG terminal of the DAL4.

• Lightning surge protectors for power supply line are recommended for complete protection.

Notes

• Be sure to use lightning surge protectors (model: MDP-DM3) on twisted-pair cables.

• Be sure to connect the terminal No. 1 of the MDP-DM3 with SG terminal of the DAL4.

• For connecting model DLA2 or SMLM with the DAL4 in the same panel, install them between the MDP-DM3 and the DAL4.

Be sure to connect the terminal No. 1 of the MDP-DM3 with SG terminal of the DAL4.

• Lightning surge protectors for power supply line are recommended for complete protection.