Multitech Wireless EDGE User's Guide download pdf (Page 9)

Chapter 1 – Product Description and Specifications

Multi-Tech Systems, Inc. MultiModem EDGE Wireless Modem User Guide 9

RS232 15-Pin Connector Pinout

PIN EIA CCIT Designation

RS-232 1 DCD 109 Data Carrier Direct

6 RX 104 Receive Data (out)

2 TX 103 Transmit Data

8 DTR 108.2 Data Terminal Ready

9 GND Signal Ground

7 DSR 107 Data Set Ready

12 RTS 105 Request to Send

11 CTS 106 Clear to Send

13 RI 125 Ring Indicator

Audio 4 MICROPHONE (+)

5 MICROPHONE (-)

10 SPEAKER (+)

15 SPEAKER (-)

Boot 3 BOOT For factory use only.

Reset 14 RESET To reset, connect to GND for minimum

of 20msec. Open for normal operation.

AT Command Reference Guides

AT commands for the EDGE wireless modem are published in a separate EDGE AT Commands Reference

Guide included on the MultiModem CD and posted on the Multi-Tech web site.

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Multitech Wireless EDGE User's Guide Page 9