Multi-Tech Systems MT5634IND - Manual (Page 7)

Chapter 2 – Installation
Multi-Tech Systems, Inc. MT5634IND User Guide (S000369A) 7
Electrical Specifications
Power Consumption Typical: 155 mA (.945 W @ 9V DC) 180 mA maximum
155 mA @ 6V DC
96 mA @ 10V DC
68 mA @ 15V DC
54 mA @ 20V DC
38 mA @ 30V DC
30 mA @ 40V DC
26 mA @ 48V DC
Power Requirements 6V DC +/- 5% to 48V DC +/- 10%
LED Indicators
LED Description
TD Transmit Data. This LED is lit when modem is transmitting data to another modem.
RD Receive Data. This LED is lit when the modem receiving data from another modem.
CD Carrier Detect. This LED is lit when the modem detects a valid carrier signal from another modem. It is
on when the modem is communicating with the other modem and off when the link is broken.
TR Terminal Ready. (Also called Data Terminal Ready.) This LED indicates the PC is turned on and ready
to communicate. This LED is lit when a data communications program initializes the modem. It goes
off when the communications program disconnects the COM port. When is goes off, a connected
modem will disconnect.
PWR Power. This LED Indicates the presence of DC power when lit.
RS-232 9-Pin Connector
Pin Description
1 DCD
2 RX Data
3 TX Data
4 DTR
5 Ground
6 DSR
7 RTS
8 CTS
9 RI