11 faults (j11), 12 data interface (j12) – Comtech EF Data D&I User Manual
Page 22
D&I
Revision 0
Connectors ans Switches
MN/D-I.IOM
2–10
2.11 Faults (J11)
The Faults connection is an 8-position terminal block located at the front of the breakout
panel.
Signal Function
Name
Pin #
Ground GND
1,
5
Primary Common
Primary Norm/Open
Primary Norm/Closed
PRI–COM
PRI–NO
PRI–NC
2
3
4
Secondary Common
Secondary Normally Open
Secondary Normally Closed
SEC–COM
SEC–NO
SEC–NC
6
7
8
2.12 Data Interface (J12)
The data interface connection is a 50-pin female D connector located at the rear of the
breakout panel. Screw locks are provided for mechanical security of the mating
connector.
Signal Function
Name
Pin #
Ground GND
1,
2
Drop Data Input
DDI–A
DDI–B
34
18
External Clock
EXC–A
EXC–B
35
19
Insert Data Output
IDO–A
IDO–B
36
20
Drop Data Output
DDO–A
DDO–B
37
38
Terrestrial Tx Data
Terrestrial Rx Data
TER–TXDAT
TER–RXDAT
5
7
Insert Data Input
IDI–A
IDI–B
39
40
Primary Common
Primary Normally Open
Primary Normally Closed
PRI–COM
PRI–NO
PRI–NC
10
43
27
Secondary Common
Secondary Normally Open
Secondary Normally Closed
SEC–COM
SEC–NO
SEC–NC
11
44
28
Data Set Ready
DSR
48
Terrestrial ESC DSR
TER–ESC–DSR
41