User's Manual

Page 4–5
18 September 2007
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
eNfusion™ HSD-128 High-speed Data Terminal
(b) Maintenance Port Cable Assembly
HSD maintenance cable connections may vary in length, type of connection
used, and pinouts—depending on the access point used.
The cable assembly for HSD transceivers assumes that the computer’s COM
Port interface is a 9-Pin, D-Sub connector (DB9S). Cable assembly details for
HSD transceivers are presented in
Figure 4–2 and Figure 4–3. The cable
assembly required for HSD-X transceivers is presented in Figure 4–4.
Note: The maximum cable length, shown in Figure 4–2 and Figure 4–3, assumes
that the length is measured from the ARINC 600 connector to the DB9
breakout connector.
Table 4–4. Front-Panel Maintenance Port Access Cabling (HSD)
Front Panel Access
Pin Definition
Front Panel
DB25S
HSD
Maintenance
Cable
Connector
DB25P
Cable
(See Figure 4–3)
Computer
DB9P
Maint Port SGND 10 10 5
Maint Port Rx 12 12 3
1
1
2
Table 4–5. HSD-X Maintenance Port Pin Descriptions
Function Pin
HDS-X
In/Out
Signal Type
Data Loader in A 1 – Reserved
Data Loader in B 2 – Reserved
Spare 3 – –
Data Loader out A 4 – Reserved
Data Loader out B 5 – Reserved
Spare 6 – –
Data Loader Continuity Link (A) 7 – Reserved
Maint Port TD 8 Out RS-232
Maint Port GND 9 GND RS-232
Maint Port RD 10 In RS-232
Data Loader Continuity Link (B) 11 – Reserved
ATE Reserved 12 – ATE
ATE Reserved 13 GND ATE
ATE Reserved 14 – ATE
ATE Reserved 15 – ATE