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T.O. 31W2-2GSC24-2
TM 11-5805-688-14-1
NAVELEX 0967-LP-545-3010
SECTION III
EQUIPMENT PREPARATION PROCEDURES
the card as follows (refer to figure 3-12 for all switch
locations):
3-64. PREPARATION CONSIDERATIONS.
1. Note the multiplexer output rate (Ro) entered
3-65. This section contains the detailed procedures for
on the worksheet. If Ro is less than 2000 bps, set S1 to
configuring the multiplexer and demultiplexer functions in
the Ro < 2KHZ position. If Ro is 2000 bps or higher, set
the multiplexer set. The procedures are keyed to the
S1 to the Ro > 2KHZ position.
information  as  presented  on  the  configuration
worksheets (figure 3-11). To ensure that a multiplexer
2. Note the channel INTFC 75 or 6K block on
set is completely and properly set up for the designated
the worksheet; set S4 and S5 to the indicated 75 or 6K
system application, the configuration worksheets should
position.
be duplicated and completed for each equipment
configuration being used. The configuration worksheets
3. Set S6 to the ON position.
also serve as a record of the configuration and may be
subsequently used as checklists to ensure that all
NOTE
multiplexer set switch settings have been properly
performed.
Setting S6 to the OFF position
3-66. MULTIPLEXER CHANNEL ELECTRONICS
will inhibit the display of any
SETUP PROCEDURES.
card errors detected by the
RCB diagnostic circuits.
3-67.
The information required for the setup of
multiplexer channel cards for a given configuration is
4. Set S7 to the ON position,
provided on sheet 1 of the configuration worksheets
(figure 3-11). Sheet 1 provides the following information:
the identity of each active channel; each channel's input
NOTE
data rate (Rc); the number of ports (K) assigned to the
channel; and the type of channel card to be used in
Setting S7 to the OFF position
processing each channel data input. Space is provided
will inhibit the display of any
for entry, when applicable, of channel card input
out-of-tolerance
(OOT)
impedance data and coarse rate conversion strapping
condition  detected  by  the
data. Space is also provided for entry of the multiplexer
RCB card diagnostic circuits.
output rate (Ro).
prescribe the setup procedures for the three optional
5.  Refer to the worksheet, and note in the
multiplexer channel cards (paragraph 3-27) based on the
PORTS K blocks the number of ports (K) assigned to
information provided.
each channel. Note the port rate (Rp) shown on sheet 2
of the worksheets; multiply K and
3-68. RCB CARD (P/N 61864010).
3-69. For each channel that uses an RCB card, set up
3-29

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