MODEL: DAL4

DAL4 SPECIFICATIONS

ES-6782 Rev.2 Page 4/6

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

MOUNTING REQUIREMENTS unit: mm (inch)

2–M5

60 (2.36)

■ M5 SCREWS

2–M4

60 (2.36)

■ M4 SCREWS

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM

4

3

2

1

13

14

15

16

U(+)

FG***

V(–)

POWER

9

10

Repeater

PORT-A

Shielded

Twisted-pair Cable

6

5

Transceiver

8

7

Transceiver

Transceiver

■DAL4-1

LINK A

13

14

15

16

U(+)

V(–)

POWER

9

10

Repeater

■DAL4-2

FIBER OPTICS

LINK B

FIBER OPTICS

PORT-A TXD

PORT-A RXD

13

14

15

16

U(+)

V(–)

POWER

9

10

Repeater

■DAL4-5, 7

FIBER OPTICS

FIBER OPTICS

When the unit is located at the end of transmission line via twisted-pair cable (= no cross-wiring),

short across these terminals. Do not short them for the one not located at the end.

When the DAL4 is to be connected with the 22LA1 or DLA1 multi transmission devices,

do not connect the shield wire to the SG (4, 8 or 16) but to the FG at the instrumentation panel.

Grounding the FG improves noise immunity of the power and transmission lines, and

is a recommended practice when the DAL4 is installed where a noise is present.

*

**

***

11

12

11

12

11

12

*Jumper Pin

+

–

Jumper Pin*

+

–

PORT-B

Shielded

Twisted-pair Cable

*Jumper Pin

+

–

PORT-C

Shielded

Twisted-pair Cable

Isolation

Isolation

Transceiver

Jumper Pin*

+

–

PORT-C

Shielded

Twisted-pair Cable

Transceiver

Jumper Pin*

+

–

PORT-C

Shielded

Twisted-pair Cable

Terminating

Resistor

Terminating

Resistor

Terminating

Resistor

Terminating

Resistor

Terminating

Resistor

**

**

**

**

**

FG***

FG***