MCC iPort/LAN 2, Руководство пользователя

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Communication signals included in the VCP interface include:
• TX - Transmit Data from the Host Computer to the iPort/LAN 2.
• RX - Receive Data from the iPort/LAN 2 to the Host Computer.
• RTS - Request to Send from the Host Computer to iPort/LAN 2.
• CTS - Clear to Send from the iPort/LAN 2 to the Host Computer.
2.2 +5VDC Power Jack
The iPort/LAN 2 adapter requires 300ma of REG5 volt power. This
power can be supplied in one of two ways:
• Power via the +5VDC power jack (2.5mm, Center Positive).
If the I
2
C Bus adapter is powered via its +5VDC power jack, and the Mode
switch is in Source position, up to 100ma of +5VDC power is available to
external circuits via the +V wire in the I
2
C Bus connector.
• Power via the I
2
C Bus interface connector (+V Pin).
If 300ma of REG5V power is available in the target system, and the
Mode switch is in Source position, the I
2
C Bus adapter can be powered via the
+V pin in the I
2
C Bus connector.
See the “Hardware Setup” section for additional details.
2.3 I
2
C Mini Interface Connector
The iPort/LAN 2 I
2
C Bus host adapter includes a five wire (1x5) 2.54 mm (.100"),
positive locking, shrouded header receptacle connector (see Appendix A) for
interfacing to an external I
2
C Bus. Lines provided include:
• I
2
C Clock (SCL)
• I
2
C Data (SDA)
• I
2
C /INTerrupt
• Ground
• +V
Minimum wiring for I
2
C Bus communications include I
2
C Bus Clock, Data, and
Ground.