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 chasis:

• E1 tributaries
• 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)

Hardware components

Chassis

The base chassis houses the following:

STM-1 interfaces: STM-1 optical / electrical interfaces are supported depending on Terminal multiplexer or Add-Drop Multiplexer configuration.

Management interfaces: This is provided through the 10/100 Mbps NMS (Ethernet) port or an RS232C craft port.

Timing Interfaces: External 2Mbps or 2.048 MHz timing signal inputs are provided for synchronizing the equipment.