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    DB-9 Connector Pinouts for the M40e Routing Engine AUX/MODEM and CONSOLE Ports

    The ports on the CIP labeled AUX/MODEM and CONSOLE are DB-9 receptacles that accept RS-232 (EIA-232) cable. The AUX/MODEM port connects the Routing Engine to a laptop, modem, or other auxiliary unit, and the CONSOLE port connects it to a management console. The ports are configured as data terminal equipment (DTE). Table 1 describes the DB-9 connector pinouts.

    Table 1: DB-9 Connector Pinout

    Pin

    Signal

    Direction

    Description

    1

    DCD

    <–

    Carrier Detect

    2

    RxD

    <–

    Receive Data

    3

    TxD

    –>

    Transmit Data

    4

    DTR

    –>

    Data Terminal Ready

    5

    Ground

    Signal Ground

    6

    DSR

    <–

    Data Set Ready

    7

    RTS

    –>

    Request To Send

    8

    CTS

    <–

    Clear To Send

    9

    RING

    <–

    Ring Indicator


    Published: 2010-10-28