G.703 Sub-Rate Multiplexer

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G.703 Sub-Rate Multiplexer

Valiant Communications introduces its G.703, 64Kbps Sub-Rate Multiplexer.

G.703 Subrate Multiplexer Valiant's G.703, Sub-Rate Multiplexer multiplexes six 9.6Kbps RS232 asynchronous data channels to a 64Kbps, G.703 co-directional, 4 wire synchronous data channel.

The front panel has six, RS232 data ports into which upto six, RS232 asynchronous data channels @ 9.6Kbps each may be connected. The six RS232 asynchronous data channels @ 9.6Kbps are multiplexed into a 64Kbps, G.703 co-directional, 4 wire synchronous data channel, which is accessed from the system backpanel (rear).

The equipment uses data buffering and phase-lock-loop techniques to ensure error free multiplexing and demultiplexing between the synchronous and asynchronous data ports. Front panel LED indicators indicate presence of Transmit and Receive data signal on each of the data ports.

The equipment operates on a nominal -48VDC Input (-40VDC to 60VDC Input). The system also provides two dry-contact relay alarm outputs (normally open) on the backpanel (rear) which close to indicate the presence of a system alarm.

Applications:

Thin-Route Telephony satellite, radio and data networks
Establishing Multiple Telemetry Links
SCADA Networks
To transport multiple compressed voice channels interface with VCL-TRLD to provide upto six voice channels on 64Kbps links.
Interface to 64Kbps radios

External Interfaces And Connectors :

VCL G.703 Sub-Rrate Multiplexer provides the following interfaces to the external world:

-48V input for on-board power supply
2 External alarm extensions for visual and audible alarms.
6x RS 232, 9.6Kbps asynchronous data interface(s)
1x64Kbps, G.703, Co-directional synchronous data interface

Front View of VCL- G.703 SR-MUX Sub Rate Multipllexer - Front View

Block Diagram of VCL Sub-Rate Multiplexer

Block Diagram of G.703 Sub-Rate Multiplexer