User's Manual

Table 3-5 System Pin Strapping
Pin Status
System Mode TP4A TP4B TP4C TP4D
Valid - provides Aero H+
services only
0 1 0 0
Valid - provides Aero H+
an
d Swift services
0 1 0 1
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
eNfusion® HSD-440 Mark 2 Terminal
23-15-30 3-11
3 JUN 10
All other combinations are invalid and could cause an operating failure.
NOTE: The logic for the System Configuration pins is reverse to the logic explained
in ARINC 741 Characteristic Attachment 1-4, Note 19.
• Pins marked 0 are signaled by strapping to Address Common (TP7K).
• Pins marked 1 are signaled by an open circuit—no connection.
• Configurations resulting in all ones (1) are invalid.
(9) Call Light Activation Strapping
Table 3-6 shows the configuration strapping for call light activation.
Table 3-6 Call Light Activation
Configuration Strapping
Pin Number Name Function
TP4E Call Light Activation Determines whether the call light illuminates on call
ac
tivation or initialization. Activation occurs when the
GES is responding to the call request, and initialization
occurs the moment the call is placed. (1=Activation;
0=Initialization)
(10)Hookswitch Strapping
Table 3-7 shows the configuration strapping for the hookswitch method.
Table 3-7 Hookswitch Conf
iguration Strapping
Pin Number Name Function
TP2G Hookswitch Method Determines Push To Talk (PTT) or Latched Mode
(0
=Latched; 1=PTT)
(11)Priority 4 Call Strapping
Table 3-8 shows the configuration strapping for priority 4 calls.