User guide

Chapter 1 – Product Description and Specifications
8 Multi-Tech Systems, Inc MultiModem iCell Intelligent Modem User Guide
Back Panels
The reason for two different back panels is that the Rev B back panel could only support a 5Volt input on pins 1 and 2. The Rev
C and later back panel can support a 24Volt input on pins 1 and 2. The way to distinguish between Rev B and Rev C back
panels is that the RS-232 connector for the Rev B back panel is more to the left side of the back panel. The Rev C and later
back panel is 1.73 inches from the left side of the unit to the center point of the RS-232 connector.
Rev B Rev C and later
Package Contents
Unbundled Package
with No Accessories
Bundled Package
With Accessories
1 modem
1 Quick Start Guide
1 MultiModem CD
Note: You must supply mounting
screws, AC or DC power
supply, and an antenna.
1 modem
1 antenna
1 RS232 cable
1 USB cable
1 GPIO cable
1 power supply
1 Quick Start Guide
1 MultiModem CD
Note: You must supply mounting screws.
Note: Your wireless provider will supply the SIM card.
Interfaces
The MultiModem has several interfaces:
● LED function indicating operating status
● External antenna (via SMA connector)
● Serial and control link (via 9-pin DB9 female)
● USB 2.0 full speed, CDC-ACM Compliant
● General purpose input/output (via 6 pin 2x3 style connector)
● Power supply (via 2.5mm miniature power jack)
● SIM card holder