Chapter 2 - General Description; Model Types - Honeywell SAT-IDP Series User Manual

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 Figure 1) and the variants shown in
Figure 2 and Figure 3. 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
MAN-0077 Honeywell Global Tracking Ltd 6