18 Control Modules—Network Control Module 200 Series
The user connects the pigtailed wires into a separately ordered hood, either
male (MHK101) or female (FHK101), according to the pinout
requirements.
The internal modem is Hayes® compatible, with the baud rate
automatically configuring to either 300 bps or 1200 bps. The module
inserts in only one orientation. This modem is compatible with the
Metasys Network and resides within the NCM. An external modem
(Hayes compatible) may be preferred if faster communication rates or
different performance characteristics are needed. Connecting an external
modem requires the use of the RS-232 submodule.
There are no switches to set on the internal modem. Two phone jacks are
evident on the module face. The phone line connects to the upper jack
marked Line. A telephone handset can be connected into the lower jack
marked Handset.
The Network Terminal plugs into this 6-pin telephone jack, which
supports Transmit, Receive, and Data Terminal Ready lines. There are no
switches to set on this built-in port.
This port is non-functional when the Operator Terminal software set is
downloaded. The NT port does not support the Zone Bus Terminal.
!
CAUTION: Do not plug a phone line into the NT port. Plugging a
phone line into the RJ-12 port may damage the port
and render it unusable.
There are no switches to set on the built-in RS-232C port (Port 3), which
is used to support a local OWS or local printer. All RS-232 connections to
third-party equipment must be made with shielded cable. A typical
application may utilize the built-in RS-232 port in addition to the RS-232
submodule, for a total of two RS-232 connections.
The battery submodule automatically recharges from the NCM, and
maintains Random Access Memory (RAM) programs and data bases for
up to a 72-hour power failure. The module installs in the field and inserts
in only one orientation. There are no switches to set.
The TTM-10n Table Top Modem provides an interface between the
RS-232 submodule on the S2 Migration NCM and one JC/85
communications trunk. A TTM-10n modem consists of an external power
supply, a circuit board with enclosure, and one master modem card.
Three models (and one alternative) of the TTM-10n are available:
Internal Modem
Submodule
RJ-12 Network
Terminal Port
RS-232C Port
Battery
Submodule
Table Top
Modem
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