Comtech EF Data D&I - Manual (Page 21)

D&I Revision 0
Connectors ans Switches MN/D-I.IOM
2–9
2.8 Insert Data Output (J8)
The unbalanced and balanced insert data output connection is a BNC connector located at
the front of the breakout panel. For J8 selections, use S2 located at the rear of the panel.
Signal Function Name Switch Switch # Position
Unbalanced Insert Data Output IDO S2 5, 6/7, 8 OFF/ON
Balanced Insert Data Output IDO S2 5, 6/7, 8 ON/OFF
NOTE S2 is ON in the down position (toward PCB).
2.9 External Reference Clock (J9)
The unbalanced and balanced external reference clock input is a BNC connector located
at the front of the breakout panel. For J9 selections, use S3, located at the rear of the
panel.
Signal Function Name Switch Switch # Position
Unbalanced External
Reference Clock EXC S3 1, 3/2, 4 OFF/ON
Balanced External
Reference Clock EXC S3 1, 3/2, 4 ON/OFF
NOTE S3 is ON in the down position (toward PCB).
2.10 ESC Channel (J10)
The ESC Channel interface is a 25-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 1, 7
Terrestrial Tx Data
Terrestrial Rx Data TER–TXDAT
TER–RXDAT 2
3
Request To Send RTS 4
Clear To Send CTS 5
Data Set Ready DSR 6
NOTE RTS and CTS are looped together on the connector.