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LOCAL HOST
Local host computer access allows shared use of the host
COMPUTER ACCESS
computer through Modular Processor Data Modules
(MPDMs). The MPDMs may have different data rates or
the same rate, each set to a data rate of 19,200 bps or less.
Refer to the connectivity diagram in Figure 1-13.
MODEM POOLS
Modem pools are groups of modems and associated
equipment used to convert digital data signals to analog
data signals or vice versa. Putting modems in pools makes
it easier for users
to
share a limited number of modems.
Each modem pool is used exclusively for either incoming
or outgoing calls.
Connected to Basic
The modem pool members use available basic telephone
Telephone Jack
jacks to send data between digital endpoints and remote
computers over MERLIN II system lines. Refer
to
the
connectivity diagram
in
Figure 1-14.
Connected to Analog
The modern pool members use available analog station
Station Jacks
jacks to send data between digital endpoints and remote
computers over MERLIN II system lines. Refer to the
connectivity diagram in Figure 1-15.
Connected to
Dedicated Outside
Lines
The modem pool members use dedicated outside lines to
send data betwecn digital endpoints and remote
computers. This type of modem pool would likely be used
if thcrc were many data calls to remote computers in order
to save the MERLIN
II
system lines for voice use. Refer
to the connectivity diagram in Figure 1-16.
1-54 System Connectivity