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:
- 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)
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.
Order-wire
This is provided through the analog 2-wire interface.
The EOW bytes are software selectable to E1 or E2.
Alarms
These provide dry contacts for extending the alarms.
Five such potential free outputs are provided that are tied to
alarms for Critical, Major, Minor, Order Wire and Power. Two
potential free inputs are provided for environmental alarms like
"Power or Air-conditioning failure", " equipment room door open"
etc.
A 2.048 M BITS clock output is
available from the system, which can be set to either a 2.048
MHz clock or a framed E1 data at 2.048 Mbps.
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