Chapter 1 - Description and Specifications

Input/output electrical characteristics for external connections

Parameters

 

800 MHZ

 

 

1900 MHZ

 

Unit

 

 

 

 

 

 

 

 

 

 

Typ.

 

 

 

Typ

 

 

Input Supply Voltage

5

13.2

 

32

5

 

13.2

32

V

Input supply current in

600

230

 

100

650

 

240

100

mA

comm. mode at full Tx

 

 

 

 

 

 

 

 

 

power

 

 

 

 

 

 

 

 

 

Input supply current in

240

100

 

50

250

 

100

50

mA

comm. mode at full Tx

 

 

 

 

 

 

 

 

 

power

 

 

 

 

 

 

 

 

 

Input supply current at idle

50

20

 

20

50

 

20

20

mA

 

LED Indicators

 

 

 

TD. Transmit Data.

 

Lit when modem is transmitting data.

RD. Receive Data.

 

Lit when modem is receiving data.

CD. Carrier Detect.

 

Lit when data connection has been

 

 

established.

LS. Line Status.

 

Continuous “on” state indicates that

 

 

the wireless modem is not registered on

 

 

the network.

 

 

Flashing state indicates registration on

 

 

network.

 

 

Off state. Modem is off (not ready) or in

 

 

download mode.

TR. Terminal Ready.

 

Commonly called “Data Terminal Ready.”

 

 

This is a readiness signal from the PC.

PWR. Power.

 

Indicates presence of DC power when lit.

Multi-Tech Systems, Inc. MultiModem CDMA User Guide

9