Input/Output - COBHAM ELT/NAV INTERFACE Abbreviated Component Maintenance Manual

SUBTASK 25-69-10-870-002
B.

Input/Output

(1) Table 4 lists the ELT/NAV Interface input/output specifications.
PIN
P2-1
P2-2
P2-3
P2-4
P2-5
P2-6
P2-7
P2-8
P2-9
P2-10
P2-11
P2-12
P1-1 thru 24
P1-25 and 26
COBHAM AVIONICS WULFSBERG ELECTRONICS
ABBREVIATED COMPONENT MAINTENANCE MANUAL
453-6500
Table 4. Input/Output Specifications
DESCRIPTION
Power Input
5.6 VDC Output
ARINC 429-A Input
(Auto Speed Select)
ARINC 429-B Input
(Auto Speed Select)
Not Used
Not Used
Not Used
RS-232 RX
TX Output
RX Input
ELT/NAV Ground
ELT Ground
24-bit Address Input
24-bit Address Return
CHARACTERISTIC
+28 VDC ±5 VDC
300 mA max.
Vmax = 6.0 VDC
Vmin = 5.3 VDC
High/Low
Standard or GAMA
High/Low
Standard or GAMA
N/A
N/A
N/A
RS-232
RS-232
TTL
Aircraft Ground
Aircraft Ground
Ground =1
Open = 0
24-bit Ground
25-69-10
Page 29 of 58
APR 06/10