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DS3 Electrical to Optical Converter

Interact with this product in a Layout Tool:


  • Electrical to optical converter for DS3 (44.736Mb/s)
  • Automatic cable equalization for up to 300m of high quality 75Ω coaxial cable
  • Signal reclocking and jitter attenuation
  • Output wave shaping for G.703 standards compliance
  • Loss of signal (LOS) detection/indication (ANSI T1.231-1999 and ITU G.775)
  • Electrical output drive level control for enhanced distance
  • Transformer coupled inputs/outputs
  • Optical output wavelengths of 1310nm, 1550nm, and up to sixteen CWDM wavelengths (ITU-T G.694.2 compliant)
  • DWDM wavelengths (ITU-T G.694.1 compliant) also available
  • Supports multi-mode and single-mode fiber
  • Fully hot swappable from front of frame
  • Occupies one card slot and can be housed in the 1RU 7801FR frame which holds up to four single or two dual slot modules, the 3RU 7800FR frame which has a 15 slot capacity, the portable 3RU 350FR frame which has a 7 slot capacity, or a standalone enclosure which holds a single module.
  • Comprehensive signal and card status monitoring via four digit card edge display, or remotely through SNMP and VistaLINK® capability
  • VistaLINK® capable for remote monitoring via SNMP (using VistaLINK® PRO) when installed in 7800FR frame with a 7800FC VistaLINK® Frame Controller



Standard G.703 @ 44.736Mb/s
Number of Inputs 1 isolated
Connector BNC per IEC 61169-8 Annex A
Equalization Automatic to 300m with Belden 8281 or equivalent cable
Return Loss > 20dB up to 44Mb/s


Standard Same as input
Number of Outputs 2 reclocked
Connector BNC per IEC 61169-8 Annex A
Waveform Conforms to G.703 compliant masks
Return Loss > 15dB up to 44.736Mb/s
Drive Level Low for cable lengths < 70m or High for cable lengths > 70m

Optical Output

Number of Outputs 1
Type Scrambled DS3 @ 44.736Mb/s
Connector SC/PC, FC/PC female housing
Return Loss > 14dB
Fiber Size 9µm core / 125µm overall
Wavelength See ordering information
Optical Power
1310nm FP -7.5dBm ±1dBm
1550nm, CWDM DFB 0dBm ±1dBm
DWDM DFB +7dBm ±1dBm


Voltage +12V DC
Power 6 Watts (non-DWDM) or 9 Watts (DWDM)


Number of Slots 1


Laser Safety Class 1 laser product, complies with 24CFR 1040.10 and 1040.11, IEC 60825-1
EMI/RFI Complies with FCC Part 15, Class A, EU EMC Directive

Ordering Information

DS3 Electrical to Optical Converter
7707EO13-DS3 1310nm FP laser
7707EO15-DS3 1550nm DFB laser
CWDM & DWDM (Ordering Information)
7707EOxx-DS3 CWDM DFB laser
7707EODxxx-DS3 DWDM DFB laser (Contact Factory for Wavelength Availability)

Ordering Options

Notes Rear plate and fiber connector must be specified at time of order - eg: [model]+SC+3RU
Connector Suffix
Rear Plate Suffix
+1RU 1RU rear plate for use with 7701FR Multiframe
+SA Standalone Enclosure Rear Plate
+3RU 3RU rear plate for use with 350FR, 7700FR-C or 7800FR Multiframes


350FR Portable Multiframe which holds 7 single slot modules
7700FR-C 3RU Multiframe which holds 15 single slot modules
7800FR 3RU Multiframe which holds 15 single slot modules
7701FR 1RU Multiframe which holds 3 single slot modules
S7701FR 7700 Series Standalone Enclosure