User's Manual

Page 3–50
18 September 2007
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
eNfusion™ HSD-128 High-speed Data Terminal
Figure 3–15. RJ-45 Connector Terminator Details – Cooperative Mode
5. System Configuration Pin Strapping – Cooperative Mode
The HSD adjusts its configuration according to the status of several strap pins
on the rear ARINC 600 connector.
Configuration pins are assigned based on system-mode-configuration
selection, and data input/output (I/O) requirements as shown in
Table 3–25.
Detailed pin assignment is shown in Table 3–26 and Table 3–27.
Note: The logic for the System Configuration pins is reverse to the logic
explained in ARINC 741 Characteristic Attachment 1-4, Note 19. For
System Configuration pins, 0=strapped to common and 1=open.
• Pins marked “0” are signaled by strapping to “Fwd Address
Common” (T7K).
• Pins marked “1” are signaled by an open circuit—no connection.
• Configurations resulting in all “1’s” are invalid.
6. System Mode Strap Pins Coding – Cooperative Mode
The HSD must be externally strapped as highlighted in Table 3–26; it
illustrates the system pin strapping for operation in Cooperative Mode (with
Collins SAT-906).
Table 3–25. Configuration Pin Summary – Cooperative Mode
Pin # Name Function
TP4A to D System Config #1 to #4 System Mode (See Table 3–26)
TP4E to H System Config #5 to #8 Not assigned (set to"1")
MP5G to K Data I/O Config #1 to #4 NOTE: Data I/O Mode (See Table 3–27)
MP6G to K Data I/O Config #5 to #8 Not assigned (set to"1")