9
TIME-DIVISION MULTIPLEXOR
3.7 Board Layout and Jumper Settings
Figure 3-1. Board Layout.
Power
Connector
J1
JP3
JP2
JP1
Power
Sync
Factory Test
Jumpers
MUST
BE
IN
Character
Length
ON
OFF
{
25%
Stop Bit Reduction = ON/12.5%
Stop Bit Reduction = OFF
Factory Test,
MUST
BE
OFF
Chan 1 Async = ON/Chan 1 Sync = OFF
Signal Ground Connected to Chassis Ground = ON
J2
J3
J4
Composite
(Modem)
Channel 1
(Terminal)
Character Length — SW1
1
2
Length
OFF
OFF
10 Bits
ON
OFF
11 Bits
OFF
ON
8 Bits
ON
ON
9 Bits
Channel 2
(Terminal)
1 2 3 4 5 6
