MODEL: MD-DNS

MD-DNS SPECIFICATIONS

ES-8186 Rev.2 Page 2/3

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

CONNECTION EXAMPLES

CN1

CN2

A1

A2

Node

MD-DNM

Drop Line

Drop Line

Trunk Line

24V DC

Supply

G

Node

G

G

CN2

CN1

A1

A2

MD-DNS

G

Drop Line

Node

G

Node

G

CN2

CN1

A1

A2

MD-DNS

G

• Max. 4 MD-DNM/-DNS can be connected on the single network.

• Cross-wire between the G terminals of the MD-DNM/-DNS and

of the node metallic housing.

However, when the G terminal of the node metallic housing is not

isolated from the Drain terminal, DO NOT CROSS-WIRE in order

to prevent a ground loop. Ground only the arrester if the node has

not G terminal.

• The MD-DNM/-DNS must be installed on the drop lines.

• Use the MD-DNM for the cables where a large current is present.

• The individual and total length of drop lines must be shortened by

1 meter per each MD-DNM/-DNS module.

DIMENSIONS unit: mm (inch)

Unit side connector: MSTB 2,5/5-GF-5,08AU

(Phoenix Contact)

Cable side connector: MSTB 2,5/5-STF-5,08AUM

(Phoenix Contact)

DRAIN

V+

V+

DRAIN

CN2

CN1

CN3 CN4

92 (3.62)

90 (3.54)

100 (3.94)

3–5 (.20) dia.

MTG HOLES

SURGE ABSORBER

FAILURE INDICATOR

HOLE

DIN RAIL

35 mm wide

FOR WALL MOUNT

[6 (.24)]

41 (1.61)

15.5 (.61)

3 (.12)

■ TERMINAL WIRING

Black

Blue

Bare

White

Red

Red

White

Bare

Blue

Black

Unit side connector: MSTBV 2,5/5-GF-5,08AU

(Phoenix Contact)

Cable side connector: MVSTBR 2,5/5-STF-5,08AUM

(Phoenix Contact)

FUNCTION

FUNCTION

•CN1

•CN2

Red

White

Bare

Blue

Black

Black

Blue

Bare

White

Red