User's Manual

SYSTEM DESCRIPTION AND INSTALLATION MANUAL
TCAS 3000 Traffic Alert and Collision Avoidance System
344323
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Page 129
15 Dec 2005
Table 17. ACSS Control Panel Leading Particulars
Item Specification
Dimensions (maximum):
Height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.25 in. (57.2 mm)
Width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.75 in. (146.1 mm)
Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.00 in. (127.0 mm)
Weight (maximum) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1 lb (0.953 kg)
Power Requirements:
Primary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115 V, 400 Hz (2.0 Watts maximum)
Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 V, 400 Hz (3.0 Watts maximum)
Mating Connectors:
J1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M83723/75R1624S7
J2 (Dual Mode S Version) . . . . . . . . . . . . . . . . . . . . . . M83723/75R1624S8
J2 (ATCRBS/Mode S Version) . . . . . . . . . . . . . . . . . . MS3476L2041S
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unit Dzus Fasteners
(1) Functional Description and Operation
Communication with Mode S transponders is accomplished through an ARINC 429
bus as defined in ARINC Characteristic 718A. Control panel functions include 4096
ident code selection and display, altitude source and reporting inhibit selection,
selection between two onboard transponders, TCAS TA or TA/RA advisory selection,
and selection of TCAS test. A listing of the control panel switch functions is as
follows:
(a) ALT RPGT Switch 1, OFF, 2
Used to select between altitude sources 1 and 2, or to disable altitude reporting
in transponder replies.
(b) XPDR FAIL Annunciator
The illumination of the annunciator is an indication of a performance monitor
failure detection.
(c) Mode Control Rotary Switch
Disables reply capability in STANDBY mode. Enables MODE S transponder in
ON mode. Enables ATCRBS transponder in ATC mode. The TA mode enables
the TCAS computer, in conjunction with the Mode S transponder, to provide
traffic advisories. The TA/RA mode enables the TCAS computer, in conjunction
with the Mode S transponder, to provide traffic and resolution advisories. The TA
and TA/RA modes are electrically tied to the ON mode and enable the Mode S
transponder when selected.