E1 (G.703) Fiber Optic Modem

Product Overview

Aries Telecom offer its E1 (G.703) Fiber Optic Modem (FOM) provides the user the capability to establish communication between two E1 interfaces or between an E1/FE1 interface and a "n"x64 V.35 interface over an optical fiber link.

It establishes a secure, long range data fiber link between routers, multiplexers and other E1 devices.

The primary application for the E1 (G.703) Fiber Optic Modem is to establish point-to-point fiber link at ranges longer than any copper modem can achieve. The clock options are Internal/External/Slave Clock - three clock mode option.

Front View

Back View


Technical Specifications

Electrical Interface (E1 Tributary)

Number 1
Nominal bit rate 2048Kbps
Bit rate tolerance 50ppm
Termination Impedance 120 Ohms balanced / 75 Ohms un-balanced
Line code HDB3
Frame structure As per G.704
Electrical Interface As per G.703
Return Loss at input port:

51.2 KHz to 102.4 KHz


> 12dB

102.4 KHz to 2048 KHz > 18dB
2048 KHz to 3072 KHz > 14dB
Electrical Interface 0.05UI
Maximum Input Jitter
20Hz to 93 Hz 1.5UI
700Hz to 100KHz 0.2UI
E1 Connectors RJ-45/BNC
Permissible Attenuation 6 dB (max) @ 1024KHz

Others Links

Technical specifications are subject to change without notice.
All brand names and trademarks are the property of their respective owners.


Ethernet over FE1 Converter - Data Sheet (PDF)

Ethernet over Multi E1 (ML-PPP) Converter

Ethernet over FE1 Converter
Ethernet over E1 Converter

1 x E1 over Ethernet Multiplexer  
(TDM over IP)

2 x E1 over Ethernet Multiplexer
(TDM over IP)
8 x E1 over Ethernet Multiplexer (TDM over IP)
16 x E1 over Ethernet Multiplexer (TDM over IP)
Ethernet over 4 E1 Converter
Ethernet over SDH Converter
VCL-TP, Teleprotection
Equipment (C37.94 Optical Version)

VCL-TP, Teleprotection Equipment (G.703 64 Kbps Electrical Version)

Gigabit Ethernet over SDH
Other Link
VCL-MX Version 6 - 80 E1 Voice and Data Multiplexer
 VCL-MX Version 6 DXC - 80 E1, 160Mbps DXC Switch
STM-1, STM-4, STM-16 SDH Multiplexers
Multiplexers & Channel Bank
Monitoring Groomer Solution
TDM over IP Solutions
Optical Multiplexer
Teleprotection Equipment
Ethernet over SDH Converter
Ethernet over Multi E1 (ML- PPP) Converter
Digital Access Cross Connect (DXC)
    :: Application Diagram ::

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Aries Telecom and Trading Corp.
PO Box 85680, Al-Jazeera Al-Hamra, Ras Al Khaimah, U.A.E.
Ph: +971 56 136 1308, Fax:  +971 43 631 147