Comtech EF Data CDM-625A User Manual
Page 92
CDM-625A Advanced Satellite Modem
MN-CDM625A
Rear Panel Connectors and Pinouts
Revision 3
3–8
Table 3-2. CIC-60 Module Connector Pinouts – HSSI/EIA-613 Side
Table ordered by Signal Function
Signal Function
Pin #
(+, –)
HSSI Signal
EIA-613 Circuit
Circuit Direction
Comment
Signal Ground
1, 26
SG
102
Ground
Receive Timing
2, 27
RT
115
From DCE
DCE Available
3, 28
CA
107
From DCE
Receive Data
4, 29
RD
104
From DCE
Loopback circuit C
5, 30
LC
undefined
From DCE
Not used
Send Timing
6, 31
ST
114
From DCE
Signal Ground
7, 32
SG
102
Ground
DTE Available
8, 33
TA
108/2
to DCE
Terminal Timing
9, 34
TT
113
to DCE
Loopback circuit A
10, 35
LA
143
to DCE
Not used
Send Data
11, 36
SD
103
to DCE
Loopback Circuit B
12, 37
LB
144
to DCE
Not used
Signal Ground
13, 38
SG
102
Ground
Not used
14, 39
undefined
Not used
TX DVALID
15, 40
undefined
Not used
Reserved (to DCE)
16, 41
Not used
Reserved (to DCE)
17, 42
Not used
Reserved (to DCE)
18, 43
Not used
Signal Ground
19, 44
SG
102
Ground
20
undefined
Not used
45
undefined
Not used
21
undefined
Not used
Reserved (to DTE)
46
Not used
22, 47
undefined
from DCE
Not used
23, 48
undefined
from DCE
Not used
Test Mode
24, 49
TM
142
from DCE
Not used
Signal Ground
25, 50
SG
102
Ground