Справочник Пользователя для EMS Technologies Canada Ltd. HSD-X

If the Multi-Channel HSD configuration does not pass the system operational 
verification procedure, or if the system fails, refer to the test and fault isolation 
checks presented in Table 4–26.

EMS SATCOM may occasionally release new software. Newly released software is loaded 
via a laptop or computer connected by cable to the maintenance port of the HSD system 
using an HSD Firmware Upgrade application (PN 1110-SW-1021 – ADT_LOAD.exe).

CHANNEL CARD    #1           #2           S1           S2
EIRP/WATTS   18.5/10       0.0/0        0.0/0        0.0/0

HPA (ITS): 14.2 WATTS A   CHANNEL CARDS: 10.1 WATTS  ANT GAIN: 12
11:39:36 PERMITTED UNDERDRAFT: 0.0 dB  ADD M4 CALL: 25 WATTS
AERO WATTS:  USED=00               HPA=60 WATTS  HPA GAIN=62.6 dB

CHANNEL CARD    #1           #2           S1           S2
EIRP/WATTS   17.5/8       18.5/10      19.5/10      20.5/16        
HPA (ITS): 50.4 WATTS A   CHANNEL CARDS: 43.8 WATTS  ANT GAIN: 14 
14:43:43 PERMITTED UNDERDRAFT: 0.0 dB  ADD M4 CALL: 25 WATTS
AERO WATTS:  USED=00               HPA=60 WATTS  HPA GAIN=62.6 dB

Ocean Region Registration Fails

Make sure all HSD LRUs are configured with the 
same default LES Access Codes (Primary and 
Secondary)

Unable to place calls using the 
HSD-Xs

Check System Config and I/O Config strapping

System “not working” (Fault LED – 
ON)

Check HPA Status and FWD ID, SDI strapping

No communication with avionics

Check multi-control wiring

Unable to place an HSD Swift64 call Activate Report 38 and check for power request 

value. 
Check RF coax connections in the Transmit path 
to the DLNA

Calls dropping when placing 
multiple calls 

HPA to antenna, cable loss value may not be 
accurate. Re-measure the HPA to antenna and 
HSD-X to HSD-128 cable losses and re-configure 
the HSD system to match the revised value.