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AT5100 DMOD Transmitter

ACT AT5100 1RU 1550nm Direct-Modulated (DMOD) Laser Transmitter offers a flexible and scalable optical transmission for high quality video in short, medium distance CATV networks. It was designed with high linearity and low chirp DFB laser, with built-in pre-distortion compensation and AGC close loop control for improved performance.

    Suitable for short, medium distance FTTH applications

    Suitable for long distance 1550 nm QAM Overlay applications, up to 70km

    Optimized models for analog and digital signal up to 15km

    High linearity and low chirp DFB laser

    Built-in pre-distortion compensation and AGC closed loop control,

    Dual redundant hot-swappable AC or DC power supplies

    Stimulated Brillouin Scattering (SBS) suppression for optimized CSO

    Front-panel LCD for local monitoring of transmitter status

    Local or remote monitoring and configuration

    SNMP/HTTP monitoring, management and control

AT5100 DMOD 1550nm Direct‑Modulated (DMOD) Laser Transmitter ‑ 19” 1RU 

RF Specification

RF Bandwidth

47 MHz to 862 MHz or 1002 or 1218 MHz

RF Flatness

±0.75 dB @ 47 MHz to 862 MHz

RF Input Level

20 dBmV ± 2 dBmV

RF Input Return Loss 

≥16 dB 

RF Input Impedance 

75 Ω 

RF Test Point 

‑20 dB 

TV Channel Plan 

60 PAL channels, 80 NTSC channels

Link Performance


50 dB (60 ch PAL, 15 km fibre, ‑1 dBm receive)


‑63 dBc


‑57 dBc


39 dB (80 QAM256 channels within 47 MHz to 1002 MHz)

Optical Specifications


1550 nm ± 5 nm and ITU Channels

Line Width 

≤1 MHz 

Optical Output Power 

Single or Dual 5dBm, 6 dBm, 9 dBm, 10 dBm

Optical Connector


Optical Return Loss 

55 dB

General Specifications

Management Interface

RJ45 Web & SNMP, RS232

Operating Temperature

‑5 °C to +65 °C

Storage Temperature

‑40 °C to +85 °C

Power Supply 

90 to 265 VAC or 36 to 60 VDC

Power Consumption

≤50 W (single power supply)

Operating Relative Humidity

5 % to 95 % RH (non‑condensing)

Dimensions (W × D × H)

483 mm × 254 mm × 44 mm


5 kg 

Ship Weight

5.5 kg


Note: Measured in a typical system configuration for the nominated channel numbers and nominated fibre lengths for each model at 25 °C ambient temperature.

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