Rs232 Ext Modem Card; Figure 35: Db9 (Female) Pin Configuration; Table 15: Rs232 Ext Modem Card Pinout - RuggedCom RuggedRouter RX1000 Family Installation Manual

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4.11 RS232 EXT Modem Card

An RS232 External Modem Card can be optionally installed on the RX1000. This

card provides all of the handshaking signals required to control an external modem

via a female DB9 connector. This card can be populated into Slot 2 (bottom) of the

RX1000. The pinout of the card is given in Table 15.

NOTE that although a DB9 RS232 DTE connector is ordinarily male, the female

connector has been used here for reasons of durability – there are no pins to bend. A

commonly available "male-to-male" DB9 adaptor (not a null-modem) may be used to

adapt this connection to a standard, "straight-through" RS232 cable.

RuggedRouter

RX1000 Family

Signal

RXD

TXD

DTR

COM (Isolated ground)

DSR

RTS

CTS

Communication Ports

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- Rev.122

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