VCL-STM-1, VCL100LT (upto 28 E1)
Technical Specifications
  • Multiple Services from E1/DS1s

  • E3/DS3/8Port 10/100Mbps Ethernet

  • E4/STM-1 electrical

  • STM-1 optical

  • Cost effective


Aries Telecom offers the STM-1, VCL100CPE (with 14 E1) and with one tributary interface card (E3 / DS3 / Ethernet) is an ultra-compact and cost-effective customer premises bandwidth provisioning STM-1 SDH multiplexer equipment designed to meet low or medium capacity bandwidth service demands.

Following tributary choices are available:

  • E1s (standard part of equipment / chassis) with

  • (any one of the following) E3 or DS3 or 10/100 BaseT Ethernet

STM-1, VCL100LT ( upto 28 E1 / DS1) - Technical Specifications


Network Topology

  • Linear

  • Ring

  • Mesh

Network Element Configurations

  • STM-1 Add & Drop Multiplexes (ADM)

  • STM-1 Terminal Multiplexes (TMUX)

Line Side (Aggregate) Optics

  • 2 x STM-1e/o

  • L1.1, L1.2 (ITU-T G.957 compliant)

Tributary Interfaces

  • E1 / DS1 Interfaces

  • E3 / DS3 Interfaces

  • STM-1o / STM-1e / E4

Ethernet Interfaces

  • 10/100 Ethernet

  • LCAS

  • GFP / X.86

  • Lower and Higher Order Virtual Concatenation

  • Full / Half Duplex, auto-negotiation

Cross Connect

  • VC-12 cross connect

  • Fully non-blocking

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

  • and Tributary-to-Tributary


  • 1+1 SNCP (as per G.841)

  • 1+1 linear APS (as per G.841)

  • VC-12, VC-3 level path protection


  • Redundant Power Supply Unit


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

  • RS-232 port for craft interface.

  • In-band control supported using SDH/Sonet Overhead Bytes.

  • E1 management channel with drop facility.

  • Alarm Signaling Indicators and External Contacts.


  • 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.

Timing and Synchoronization

  • Timing and Synchronization of system as per ITU-T Rec. G.813

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

  • Support of SSM Byte

  • Internal and External Timing interfaces: Two E1 Bits interfaces (as per ITU-T G.703)

Power Supply

  • -48V DC Nominal, -36V to -60V

  • Low power consumption - less than 35W

Order Wire Support, Alarms and User Data Channel

  • E1/E2 bytes used for Express Order Wire (Omnibus / Selective Calling facilities)

  • F1 byte for user data channel

  • 5 potential-free outputs and 2 potential-free inputs

Physical Dimensions

  • H x W x D (44 mm x 445mm x 270 mm)


  • Operating Temperature

  • Humidity


  • 0 to 50 C

  • 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 28 E1) - Product Brochure (PDF)
MTBF and Budgets (PDF)
Product Overview
  System Hardware
VCL100MC-1, STM-1 (upto 63 E1)
VCL-STM-1, VCL100LT (upto 28 E1)
Network Element Software
Technical Specifications
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Other Link
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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