Connector Pinout; Table 4-9. Hssi/Eia-613 Interface Connector Pinout - Comtech EF Data CDM-Qx Installation And Operation Manual

CDM-Qx Satellite Modem
External Connections
Item
Operation
Signal Sense
Cable Length to 20 Mbps
4.4.10.2
The HSSI interface has a 50 pin female SCCI-2 connector (mini-D) with the pinout
shown in Table 4-9.

Table 4-9. HSSI/EIA-613 Interface Connector Pinout

Signal Function
Signal Ground
Receive Timing
DCE Available
Receive Data
Loopback circuit C
Send Timing
Signal Ground
DTE Available
Terminal Timing
Loopback Circuit A
Send Data
Loopback Circuit B
Signal Ground
Not used
TX DVALID
Ext Carrier Off
reserved (to DCE)
reserved (to DCE)
Signal Ground
Carrier Detect
reserved (to DTE)
Signal Ground
Requirement
Simplex (Tx only or Rx only) or full duplex
Programmable Normal or Inverted or TT and TD, RT and RD
2 M (6 ft) nominal, up to 15 M (49 ft) maximum – note higher data rates usually require
shorter cable lengths

Connector Pinout

HSSI
Signal
SG
RT
CA
RD
LC
ST
SG
TA
TT
LA
SD
LB
SG
SG
SG
EIA-613
Pin # (+,-)
Circuit
102 1, 26
115 2, 27
107 3, 28
104 4, 29
undefined 5, 30
114 6, 31
102 7, 32
108/2 8, 33
113 9, 34
143 10, 35
103 11, 36
144 12, 37
102 13, 38
undefined 14, 39
undefined 15, 40
16
17, 42
18, 43
102 19, 44
undefined 20
undefined 45
undefined 21
46
undefined 22, 47
undefined 23, 48
142 24, 49
102 25, 50
4–13
Revision 6
MN/CDMQx.IOM
Circuit
Comment
Direction
Ground
from DCE
from DCE
from DCE
from DCE Not used
from DCE
Ground
to DCE
to DCE
to DCE Not used
to DCE
to DCE Not used
Ground
Not used
Not used
to DCE Not used
Not used
Not used
Ground
from DCE
Not used
Not used
Not used
from DCE Not used
from DCE Not used
from DCE Not used
Ground