Owner`s manual

4
System mode (multi-drop units) and Local mode (standard units)
allow a local terminal to instruct the Telplex to enter into any of the
other modes of operation. Either type of unit communicates in MUX
mode when a successful connection has been made with a remote
Telplex. While in MUX mode, terminal ports on the local Telplex
communicate with designated terminal ports on a remote Telplex.
Local Unit Configuration mode allows a local terminal to program
the various features on the local Telplex. Remote Unit
Configuration mode allows this same terminal to program these
features on a remote Telplex model when a communication link is
established with the remote site.
In Local Diagnostics mode, a terminal connected to a multi-drop unit
may instruct the local Telplex to perform a self-test on all ports. The
terminal may also communicate in full duplex or loopback
communication with a selected port on the local unit. Remote
Diagnostics mode allows a terminal connected to a multi-drop unit or
a standard unit to perform self-test, full duplex, or loopback
Diagnostics with ports on a remote Telplex if there is a communication
link. Standard units allow remote unit diagnostics from Remote Unit
Configuration mode.
Access Local Modem mode allows a terminal connected to a multi-
drop unit to communicate directly with the composite port and issue
commands to the local modem. This device may also instruct the
Telplex to send two separate user-programmable strings to the local
modem. A terminal connected to a standard unit may perform
modem communication from Local mode.