Product Category

Communications Units for E3X-DA-N-series Fiber Amplifiers

E3X-DRT21 / SRT21 / CIF11

Three New Communications Units for Fiber Amplifiers

Communications Units





Communications method




Connectable Fiber Amplifiers

*2 E3X-DA6 *3, E3X-DA8 *3, E3X-DAB6 *3, E3X-DAB8 *3, E3X-DAG6 *3, E3X-DAG8 *3

E3X-DA6TW *3, E3X-DA8TW *3, E3X-DA6-P *3, E39-TM1 *3

Number of connectable Fiber

16 max.

14 max.

16 max.

Power supply voltage

11 to 25 VDC

14 to 26.4 VDC

11.4 to 26.4 VDC
 (12 VDC -5% to 24 VDC +10%)

Internal current consumption

70 mA max.

30 mA max.

40 mA max.

Ambient temperature

Operating: -20 to 55°C, Storage: -30 to 70°C (with no icing or condensation)

Ambient humidity

35% to 85% (with no condensation)

Weight (packed state)

Approx. 150 g

Approx. 200 g

1. Connection is not supported for Pre-wired Amplifiers (e.g., E3X-DA11-N) and water-resistant Amplifiers
        (e.g., E3X-DA11V). 

2. Connection is supported for products manufactured on or after the date shown below (indicated with the lot number).
        Connection is also supported for models with "MADE IN JAPAN" on the cover underlined.


3. E3X-DA[]TW series have been discontinued at the end of March 2012. E3X-DA6/DA8/DA6D have been discontinued at
       the end of March 2017. E3X-DAB6, E3X-DAB8, E3X-DAG6, and E3X-DAG8 have been discontinued at the end of March
       2019. Orders for E39-TM1 will be accepted until the end of June 2021.
 4. Does not include the current supplied to the Fiber Amplifier.

Terminal-block Unit



Power supply voltage *1

12 to 24 VDC ±10%, ripple (p-p) 10% max.

Sensor power supply

11 to 23 VDC (power supply voltage -1 V)

Current consumption

40 mA max. + Sensor current consumption (total: 100 mA max.)

Response speed

1.2 ms max.

Number of inputs

1 point

Input signals

NPN/PNP no-voltage input (contact and non-contact), switchable

Input operating configuration

N.O./ N.C., switchable


Input signal display (orange)

Ambient temperature *2

 Groups of 1 to 3 Units: -25 to 55°C (with no icing or condensation)
 Groups of 4 to 8 Units: -25 to 45°C (with no icing or condensation)
 Groups of 9 to 16 Units: -25 to 40°C (with no icing or condensation)
 Storage: -30 to 70°C

1. The power supply for the E39-TM1 is provided from the Communications Unit (order separately). Use an E3X-CN02
        (order separately) Connector.
 2. When 4 or more Units are grouped together, the current consumption per Unit must not exceed 75 mA.
       When using together with the E3X-DA-N Fiber Amplifiers, connect the E39-TM1 Units at the end of the group.
        In this case, the upper limit for the ambient temperature for the E3X-DA-N Amplifiers is the rated upper limit -5°C.