Technical Specifications: STM-1 (optical / electrical)
with upto 63 E1s with E3, DS3, 10/100BaseT Ethernet interfaces


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. The STM-1 offers both electrical STM-1 (1+1) and optical STM-1 (1+1) interfaces. It is customized for the traffic demands, in the access network, typical of residential or business customers. The product supports end-to-end provisioning and management of services across all the segments of the optical network. It combines innovative optical networking software with the intelligence of SONET/SDH to deliver a flexible, cost-effective network solution.

Data Sheet stm-1, 63E1

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.

STM-1 VCL100MC-1 - upto 63 E1 / 84 T1 with E3, DS3, 8 port 10/100BaseT Ethernet interfaces

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 chasis:

  • E1
  • E3/DS3 tributaries (software configurable as E3 or DS3)
  • 10/100Base-T Ethernet (IEEE 802.3)
  • STM-1o
  • STM-1e/140Mbps tributary interfaces (software configurable).

The STM-1 / STM-4 can be managed through an integrated NMS that manages all the equipment, providing customers with end-to-end provisioning from a single platform for multiple service types - from E1/DS1s, E3/DS3s, E4/STM-1e, STM-1o and 10/100Mbps Ethernet services.

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 Technical Specifications

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/140 Mbps
  • 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
Timing & 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
Power Supply
  • Power Input: -48V DC nominal, -36V to 60V DC
  • Power consumption: less than 20W (for 21E1 configuration)
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);
    Can be mounted on a 19" or 23" or 600mm rack
  • Weight: 2.5Kg
  • Operating Temperature: 0° to 50° C
  • Relative Humidity: 10% to 90%, non-condensing

Related Links

Data Sheet stm-1, 63E1 MTBF and Budgets stm-1, 63E1 Technical Specifications System Hardware Applications Comparison Network Element Software