MAN-0077
Honeywell Global Tracking Ltd
6
Chapter 2 – General Description
This document refers to the SAT-IDP series, including their variants. Variants are indicated by alphabetic
suffixes. Most variants differ in physical characteristics only – for example bottom or side entry connector,
magnetic feet etc.
The SAT-IDP is a compact, single unit, low data rate satellite terminal, designed to operate over the Inmarsat
satellites using the IsatData Pro protocols. With an integral GPS receiver, the SAT-IDP provides low cost
satellite communications for applications such as asset tracking, telematics and SCADA exception reporting.
The SAT-IDP utilises five Inmarsat satellites providing near Global Coverage. Each satellite covers an ‘Ocean
Region’ (Global – Americas, Global - Europe, Middle East, Africa, Global - Asia Pacific, Spot - Atlantic Ocean
Region West South Central and Spot - Indian Ocean Region North East).
IsatData Pro mode of operation provides a data rate for the forward (to terminal) messages of approximately
3000 Symbols/second* with typical latency of: 100 bytes: 12 seconds; 1,000 bytes: 70 seconds**, Forward
channel can contain 2 to 6400 bytes**.
Return channel (from terminal) messages can contain 2 to 10,000 bytes** with a typical latency of: 100 bytes:
20 seconds; 1,000 bytes: 45seconds**. Traffic channel, on which messages to the terminal are received, is
determined from the internally stored configuration obtain from the Broadcast/Forward channel.
Mounting is via 3x M4 (No. 8) bolts or central M25 thread on base. Cable entry is from the centre base,
connector details are given on page 18.
* (As per IDP protocol spec- User bits are less than that because of protocol overheads)
** (For all latency, max size values are as per IDP protocol spec)
2.1 Model Types
The SAT-IDP Model Types consist of the standard model (as shown in
) and the variants shown in
. All units are functionally identical and only differ in that they offer various cable exit
and termination options, which may then be used with optional extension cables.
Figure 1
–
SAT-IDP