RAD Data comm Vmux-210 Specifications Page 173

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Installation and Operation Manual Appendix A Connector Pinouts
Vmux-210 Ver. 1.1 Serial Port A-5
A.4 Ethernet Interface Connectors
The 10/100BaseT user and network port interfaces also terminate in RJ-45
connectors (previously illustrated in
Figure A-1
).
Table A-5
lists the Ethernet
connector pin assignment.
Table A-5. Ethernet Connector Pinout
Pin Signal Function
1 TD (+) Transmit Data (positive)
2 TD (-) Transmit Data (negative)
3 RD (+) Receive Data (positive)
6 RD (-) Receive Data (negative)
Ethernet ports support connection via straight and cross cables.
A.5 Serial Port
Serial Port Connector
The Vmux-210 Serial port terminates in an RS-530/DCE interface with a female
DB-25 connector.
Table A-6
lists the pin assignment of the Serial port DB-25
connector.
Note the differences in the signal direction of the following pins, depending on
whether the interface is configured by the user to DCE or DTE mode:
Pins 8, 10, 12, 15
The Vmux-210 serial port is physically a DCE interface, and does not support an
external Receive Clock. Therefore, when configured to DTE mode, the following
pins are used in order to transmit/sample information to/from the modem:
Pins 11 and 24 (External clock B, External clock A): Clock used for sampling
the data signal received from the modem.
Pins 12 and 15 (Transmit clock B, Transmit clock A): Clock used for
transmitting data to the modem.
Note
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