Specifications

2240 Fiber Optic Modem
79
Table 4-P.
Delay Times for
Programmable
Buffered Interface
Figure 4-6.
Board Layout
for Programmable
Buffered Interface
W8 W9
W7
W14
W13
W12
-6V +/-6V +6V
100 ohm
CHASSIS GND
W2
W1
SHORT
J3
RSTBIAS
OFF ON KG NORM
W18
W17
W6
W5
W19 W20
Test
GND
DSR
W16W15
Dl1
Sw1
W10
W11
INVERT
NORM
KG OUT
SW1 Position Delay Time
(O)pen (C)losed P53
1234
CCCC * * 20 ns
O C C C 30 ns
C O C C 40 ns
O O C C 50 ns
C C O C 60 ns
O C O C 70 ns
C O O C 80 ns
OOOC 90 ns
CCCO 100 ns
O C C O 110 ns
C O C O 120 ns
O O C O 130 ns
C C O O 140 ns
O C O O 150 ns
C O O O 160 ns
OOOO 170 ns
* * Default setting as shipped