Ethernet Data Interface (Optional) - Comtech EF Data DMD50 Installation And Operation Manual

DMD50 Universal Satellite Modem

5.14 Ethernet Data Interface (Optional)

The optional DMD50 Ethernet Data Interface provides four RJ-45, Auto-Crossover, Auto-
Sensing, 10/100 Ethernet Data Ports where:
JS1 is Port 1
JS2 is Port 2
JS3 is Port 3
JS4 is Port 4
Refer to Figure 5-1 for outline drawings and Appendix E for setup and configuration.
5.15 HSSI / G.703
The HSSI (High-Speed Serial Interface) (J1) complies with the HSSI Functional and Electrical
Specifications. The physical interface is a 50-Pin SCSI-2 Type Connector. Electrical levels are
ECL. Gapped clocking not supported. The pinouts for this interface are listed in Table 5-17.
Table 5-17. J1 – HSSI (High-Speed Serial Interface) 50-Pin Connector
Pin No.
(+)
1
2
3
4
6
7
8
9
11
13
14 - 18
19
20 - 23
24
25
50
MN-DMD50– Revision 3
Pin No.
Signal Name
(–)
26 SG
27 RT
28 CA
29 RD
31 ST
32 SG
33 TA
34 TT
36 SD
38 SG
39 – 43 5 Ancillary to DCE
44 SG
4 Ancillary from
45 - 48
DCE
49 TM
N/A MOD_FLT
N/A DMD_FLT
Description
Signal Ground
Receive Timing
DCE Available
Receive Data
Send Timing (SCT)
Signal Ground
DTE Available
Terminal Timing
(SCTE)
Send Data
Signal Ground
Reserved
Signal Ground
Reserved
Test Mode
Alarm
Alarm
User Interfaces
Direction
---
Output
Output
Output
Output
---
Input
Input
Input
---
Input
---
Output
Output
Output
Output
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