Comtech EF Data D&I - Manual (Page 18)

D&I Revision 0
Connectors ans Switches MN/D-I.IOM
2–6
2.1 Drop Data Input, Insert Data Output, and Ext. Ref CLK
This signal connection is a 15-pin female D connector (J1) located at the front of the
breakout panel. Screw locks are provided for mechanical security of the mating
connector.
Signal Function Name Pin #
Ground GND 2, 4
Insert Data Out IDO–A
IDO–B 3
11
External Clock EXC–A
EXC–B 7
8
Drop Data Input DDI–A
DDI–B 1
9
For J1 selections, use S1, S2, and S3, located at the rear of the breakout panel.
Signal Function Name Switch Switch # Position
Balanced Insert Data Output IDO S2 5, 6/7, 8 ON/OFF
Balanced Drop Data Input DDI S1 1, 2/3, 4 ON/OFF
Balanced External Clock EXC S3 1, 3/2, 4 ON/OFF
2.2 Drop Data Output (J2)
The balanced drop data output connection is a 15-pin female D connector located at the
front of the breakout panel. Screw locks are provided for mechanical security of the
mating connector.
Signal Function Name Pin #
Ground GND 2, 4
Drop Data Output DDO–A
DDO–B 1
9
Drop Data Output DDO–A
DDO–B 3
11
For J2 selections, use S1 and S5 located at the rear of the panel.
Signal Function Name Switch Switch # Position
Balanced Drop Data Output
(DCE/DTE Select) DDO S5 N/A UP
Unbalanced Drop Data Output DDO S1 5, 6/7, 8 OFF/ON
Balanced Drop Data Output DDO S1 5, 6/7, 8 ON/OFF
NOTE S1 is ON in the down position (toward PCB).