VCL-STM-1 (upto 63 E1)

Network Element Software

  • Multiple Services from E1/DS1s

  • E3/DS3s,

  • STM-1 electrical

  • STM-1 optical

  • 10/100Mbps Ethernet

  • Cost effective


Aries Telecom offers the VCL100MC-1 STM-1 (upto 63 E1) with E3, DS3, 10/100BaseT Ethernet interfaces is a compact, modular, and cost effective STM-1 SDH multiplexer equipment designed to manage bandwidth and provide E1 or fractional E1, voice and data access service over STM Networks.

VCL100MC-1 (upto 63 E1) with E3, DS3, 10/100BaseT Ethernet interfaces is a 3U height multi-card chassis system that provides flexibility to the customers in terms of expansion to support additional client interfaces by adding new modules in the field.

The system has two STM-1 optical / electrical interfaces in the aggregate side and allows for upto 3 tributary add-on cards. The following tributaries are available as add-on cards for the chassis:


Download Data Sheet of VCL-STM-1 (upto 63 E1) (PDF)

  • E1

  • E3/DS3 tributaries (software configurable as E3 or DS3)

  • 10/100Base-T Ethernet (IEEE 802.3)

  • STM-1o

  • STM-1e

Additionally it provides a single 10/100Base-T Ethernet port, which can be mapped to one VC-12 bandwidth towards the aggregate side. This feature does not use any tributary slot and hence can supplement E1/DS1/E3/DS3 customers requiring a single Ethernet interface. This Ethernet interface on the base card is optional.


VCL100MC-1 Network Element Software (NES)


Network Topology

  • Linear

  • Ring

Network Element Configurations

  • Terminal Multiplexer (TMUX)

  • Add Drop Multiplexer (ADM)

  • Regenerator

  • STM-1 Cross connect

Line Side (Aggregate) Optics

  • 2 X STM-1 1310 or 1550 nm (ITU-T G.957 Compliant)

  • 2xSTM-1e

  • S/L 1.1, S/L 1.2

Tributary Interfaces

  • E1/DS1/E3/DS3 Electrical

  • STM-1o

  • STM-1e

  • 10/100 Ethernet


  • Separate tributary cards

  • Modular in design, capable of tributary upgrades in steps of 21 E1 or 1E3

  • Mix and match tributaries - E1, E3, DS3, 10/100 Ethernet

Cross Connect

  • 252 X 252 VC-12

  • Fully non blocking

  • Line to Line, Line to Tributary, Tributary to Line, Tributary to Tributary


  • SNCP/ 1+1 MSP (as per G.841)

  • VC-12, VC-3 level path protection

Optional Hardware Redundancy

  • Power Supply Card


  • Higher-order and Lower-order POH, SDH level alarms and performance monitoring (as per G.826 and G.784)

  • Local & remote loop back

  • Software Downloads


  • NES ( Network Element Software), supports full FCAPS functionality via web browser interface.

  • SNMP interface for NMS

  • RS-232 port for craft interface

  • V.24/V.28 Modem interface for remote management

  • In-band control supported using SDH Overhead

  • 10/100Base-T/RJ45 management interface

  • Alarm Signaling Indicators and External Contacts

Power Supply

  • Power Input: -48V DC nominal, -36V to 60V DC

  • Power consumption: less than 20W (for 21E1 configuration)

Timing and Synchronization

  • Timing & Synchronization of System (as per G.813)

  • Internal & External Timing interfaces: Two E1 BITS interfaces (G.703)

  • Internal oscillator capable of supplying a G.813 compliant Stratum-3 SEC

  • Support of SSM byte

  • Accepts/ Provides 2Mbps/2MHz clock references

Order wire support and user data channel

  • E1 / E2 bytes used for Express order wire (Omnibus/Selective calling facilities)

  • Five potential-free outputs and two potential-free inputs

  • F1 byte for user data channel

Physical Dimensions

  • Dimensions (H X W X D) : 133 mm x 462 mm x 280 mm (5.25 in x 18.2 in x 11 in); Cab be mounted on a 19" or 23" or 600mm rack

  • Weight: 2.5Kg


  • Operating Temperature: 0 to 50C

  • Relative Humidity: 10% to 90%, non-condensing


Related Products:

Others Links

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

VCL-STM-1 (upto 63 E1) - Product Brochure (PDF)
MTBF and Budgets (PDF)
System Hardware
Technical Specifications
Network Element Software
Technical Specifications
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16 x E1 over Ethernet Multiplexer (TDM over IP)
Ethernet over 4 E1 Converter
Ethernet over SDH Converter
VCL-TP, Teleprotection
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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