Datanet-30 As A Remote Concentrator - GE DATANET-30 System Manual

DATANET-30 AS A REMOTE CONCENTRATOR
When many remote stations are located many miles from the DATANET-30 switching center, it
may be desirable to include one or more DATANET-30's to act as a concentrator for the more
distant remote terminals. This will reduce the number of long distant lines coming into the
switching center.
The remote concentrator is connected to the switching center via a "high speed" voice-quality
trunk line. The DATANET-30 can "pack" many messages received at slow speed (75-110 bps) and
transmit them. There are two main advantages:
1. Where the switching center would be overloaded
if
all remote terminals were directly
connected, the use of the remote concentrator will reduce the time delay in a message
from its origin to its destination. This is especially so
if
the remote stations were
connected
by
multipoint private lines since it would then be possible to connect them via
single lines on the remote concentrator.
2. Reduction in transmission line costs.
If
all remote stations were directly connected,
there would be many "parallel" telegraph lines; whereas with the remote concentrator,
there is one voice line.
Switching
Center
Figure 5. Communication Lines with a Remote Concentrator
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