Specifications

TC35 / TC37 Hardware Interface Description

TC35_37_HD_02_V03.10 - Released Page 7 of 92 21.12.2001

0 Version History

This chapter reports modifications and improvements over previous versions of the

document.

Preceding document: "TC35 Hardware Interface Description" Version V0300

New document: "TC35_TC37 Hardware Interface Description" Version 03.10

Chapter Page What is new

2.1 16 Data transmission rate 14.4kbps now implemented

3.2.2 Chapter revised, technical specification of recommended battery pack added

3.3.1.1 /

3.3.1.2

Timing of ignition line described in greater detail

3.3.2 33 Brief description of powersave mode

3.3.4.3 35f Automatic undervoltage shutdown: notes added

3.3.5 37 Summary of state transitions: transition from Charge-only mode to Alarm

mode

3.5 40 Serial interface described in greater detail

3.7 44 SIM interface described in greater detail. Recommendations for SIM card

holder and SIM interface grounding added

3.8.1 47 Table revised

3.8.2.3 50 Behaviour of /RING0 line described in more detail

3.9 51 RS-232: If unused keep output pins open and connect input pins to VDD via

10k!.

6.4 75 Table 29: Power supply ratings: minimum value of I

charge

removed

6.4.2 76 Chapter revised. Figure 39 to Figure 42 and Table 30 to Table 33 moved into

one chapter. No values modified over preceding document version.

6.5.1 80 Note added: inCalibrate, outCalibrate and sideTone internally truncated to

32767.

6.5.2 81 Table 35 revised

7 86 Overview on firmware update added

9 89 List of parts and accessories enhanced