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3.0 SETUP AND INSTALLATION
3.1 INSTALLATION
Set switches to match the required configurations based on the diagrams
below. The cabling between each device and the 3042 (CTS TDM-V.24)
must be terminated with male connectors. Character Length and Stop Bit
reduction only apply to channel 1 when it is selected for asynchronous
operation.
3.2 CHARACTER LENGTH
SW1 position 1 and 2 selects the character length. The character length
includes the start, stop and any parity bits. 10 bit length is 1 start bit, 8
data bits and 1 stop bit. The chart on the previous page outlines all the
available character bit lenghts available.
3.3 STOP BIT REDUCTION
SW1 position 3 selects the percentage of stop bit reduction to occur when
the sync rate is faster than the async rate. Setting SW1 position 3 to ON
ON ON ON ON will select 25% stop bit reduction. Setting SW1 position 3
to OFF OFF OFF OFF OFF will select 12.5% stop bit reduction.
3.4 CHANNEL 1 SYNC / ASYNC
SW1 position 5 selects channel one as a sync channel or async channel.
This selection must be the same on both ends of the circuit for the units to
operate correctly. Setting SW1 position 5 to ON ON ON ON ON will select
Asynchronous operation on channel 1. Setting SW1 position 5 to OFF
OFF OFF OFF OFF will select Synchronous operation on channel 1.
3.5 EQUIPMENT GROUNDING
SW1, position 6 provides for grounding interconnection in those systems
requiring a connection between Pin # 1 (Frame Ground) and Pin # 7
(Signal Ground).
3.6 FACTORY STRAPS
SW1 position 4 is used for factory test and must be in the off position for
proper operation of the unit. In addidtion the 3 jumpers must be installed
for proper operation of the unit.
