User Guide

Iridium Communications Inc. Information Contained in this Guide
9602 SBD Transceiver Product Developers Guide is Subject to Change Without Notice
Revision 1.2 (DRAFT 2)
Iridium Communications Inc. Distribution of Guide Restricted
Proprietary & Confidential Information 21 to Product Developers Only
Table 8: Limits for 3.3V Digital Signals
Parameter Symbol Min Typ Max Unit
Input High Voltage VIH 2.0 5.5 V
Input Low Voltage VIL -0.3 0.8 V
Output High Voltage VOH 2.4 V
Output Low Voltage VOL 0.4 V
Low Level Output Current IOL 4.4 mA
High Level Output Current IOH 5.5 mA
Figure 5 provides a reference for the pin designation. This view is not to scale and not representative of
the connector mechanical layout. This view is for illustrative purposes only. This view designation is
when looking into the user connector towards the 9602/9602N module.
The numbers indicate pin designation. Additionally, on the 9602/9602N PCB, pin 1 on the user
connector is indicated on the board silkscreen.
Figure 5 User Connector Pin Number Designation (from below module)