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BB-MMNM9

更新时间： 2024-11-21 22:04:19

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NETWORKING ADAPTR NULL MODEM DB9

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BB-MMNM9 数据手册

RS-232 Null Modem Adapter

Model MMNM9

www.advantech-bb.com

PRODUCT FEATURES

•

Interconnect two devices with similar DTE ports

Reverse Pin 2 (Transmit Data) and Pin 3 (Receive Data)

Connect TD to RD, DTR to DSR, and RTS to CTS

Transfer port power from host to peripheral

Ideal for use with port powered converters from B+B SmartWorx

Null modem adapters are used to connect two DTEs (computer,

terminal, printer etc.) directly using a RS-232 serial cable. The original

RS-232 standard only deﬁned the connection of DTEs with DCEs (i.e.

modems).

ORDERING INFORMATION

MODEL NUMBER DESCRIPTION

MMNM9

Null Modem Adapter - DB9 Male / DB9 Male

With a null modem adapter, the Transmit and Receive lines are cross-

linked. Depending on the purpose, one or more handshake lines are

cross-linked. Several wiring layouts are in use because the null modem

connection is not covered by a standard. B+B SmartWorx’ Null Modem

adapter comes with a variety of connector options and pin outs to cover

most common applications.

PIN OUT DIAGRAM

All product speciﬁcations are subject to change without notice.

MMNM9_NullModem_3517ds

orders@advantech-bb.com

support@advantech-bb.com

Corporate Headquarters: 707 Dayton Road, PO Box 1040 Ottawa, IL 61350 USA 815-433-5100 Fax 433-5104

European Ofﬁce: Westlink Commercial Park, Oranmore Co. Galway Ireland +353 91 792444 Fax +353 91 792445

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