Honeywell
COMPONENT MAINTENANCE MANUAL
PART NUMBER 964-0452
I.B. 1516A Page SB-3/SB-4
Oct 25/02
23-12-01
964-0452-0XX-23-23
(012-0693-123)
Mar 30/01
Upgrades Transceiver to be capable of operation
in HF Datalink (HFDL) mode per ARINC 753 and
635, as well as the HF Voice Radio (HFVR) capa-
bilities. Control SW Ver. 1.70; HFDL HW Mod 11.
964-0452-00X-23-24
(012-0693-124)
Mar 30/01
Corrects for nuisance CMC input fault reporting.
SW Ver. 2.00; HW Mod 27.
964-0452-00X-23-25
(012-0693-125)
Mar 30/01
Allows the ARINC 429 interface between the HF
Transceiver and a CMU or ATSU to operate reli-
ably at high-speed. Also improves susceptibility of
the Transceiver to short power interrupts of 10 to
40ms when operating in data mode. Mod 28.
964-0452-00X-23-26
(012-0693-126)
Mar 30/01
Incorporates minor changes to Airborne Datalink
Processor (ADP) software to improve data mode
operation during short power interrupts, and to en-
able high-speed 429 interface to the ATSU. HFDL
SW Mod 12.
964-0452-0XX-23-27
(012-0693-127)
Mar 30/01
Converts the Airborne Datalink Processor (ADP)
CCA, A2, from either Part No. 722-4134-006 to
722-4134-008 or from Part No. 722-4134-007 to
722-4134-009. The modification consists of remov-
ing IC sockets XU6 and XU23. Mod 31.
964-0452-0XX-23-28
(012-0693-128)
Oct 25/02
Replaces the EMC Filter, A7, Part No. 300-1096-
001 (R&S Part No. 6030.2251.02, Mod 4 or lower)
with EMC Filter, A7, Part No. 300-1096-002 (R&S
Part No. 6030.2251.02, Mod 5). HW Mod 33.
964-0452-0XX-23-29
(012-0693-129)
Oct 25/02
Replaces EPROM set, Part No. 6030.2151.00 Ver-
sion 2.00 or lower, with Version 2.20 on Controller
D, A8. HW Mod 34.
964-0452-0XX-23-30
(012-0693-130)
Oct 25/02
Instructions to upload upgraded HFDL software via
a Portable Data Loader while on the bench. HW
Mod 13.
SERVICE BULLETIN
NUMBER
DATE
INCORPORATED
DESCRIPTION
