Comtech EF Data CDM-710G, Installation And Operation Manual

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CDM-710G High-Speed Satellite Modem Revision 1
HSSI Interface (CDI-60) MN-CDM710G
13–3
Figure 13-3. CDI-60 HSSI Data Interface Module – Rear Panel View
13.3 Connector Pinout
As shown in Figure 13-3 , the CDI-60 HSSI data interface has a 50-pin female SCSI-2 (mini-D)
connector; the pinout is as follows:
CDI-60 HSSI/EIA-613 Interface Connector Pinout
Signal Function HSSI Signal EIA-613 Circuit Pin # (+,-) Circuit Direction Comment
Signal Ground SG 102 1, 26 Ground
Receive Timing RT 115 2, 27 From DCE
DCE Available CA 107 3, 28 From DCE
Receive Data RD 104 4, 29 From DCE
Loopback circuit C LC undefined 5, 30 From DCE Not used
Send Timing ST 114 6, 31 From DCE
Signal Ground SG 102 7, 32 Ground
DTE Available TA 108/2 8, 33 to DCE
Terminal Timing TT 113 9, 34 to DCE
Loopback circuit A LA 143 10, 35 to DCE Not used
Send Data SD 103 11, 36 to DCE
Loopback Circuit B LB 144 12, 37 to DCE Not used
Signal Ground SG 102 13, 38 Ground
Not used undefined 14, 39 Not used
TX DVALID undefined 15, 40 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 SG 102 19, 44 Ground
undefined 20 Not used
undefined 45 Not used
undefined 21 Not used
reserved (to DTE) 46 Not used
undefined 22, 47 from DCE Not used
undefined 23, 48 from DCE Not used
Test Mode TM 142 24, 49 from DCE Not used
Signal Ground SG 102 25, 50 Ground