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MCP215X Data Logger Demo Board User’s Guide
2.5.6
Using the Integrated Optical Transceiver (U5)
To use the integrated optical transceiver, it must be electrically powered and connected
to the system. Connecting the integrated optical transceiver is done by:
1. Shorting Jumper JP7.
(this connects V DD to the integrated optical transceiver (U5))
2. Shorting Jumper JP1.
If jumper JP1 is removed, ensure that the short between two pins (on bottom-side
of board) is present.
3. Shorting Jumper JP2.
If jumper JP2 is removed, ensure that the short between two pins (on bottom-side
of board) is present.
Now the integrated optical transceiver should be operational.
2.5.7
Using a Discrete Optical Transceiver Daughter Board via
Headers J1 and J5
To use an alternative optical transceiver, a daughter board can be connected to the
MCP215X Data Logger Demo Board via the connection header of J1 and J5 (see
Figure 2-13). The integrated optical transceiver on the MCP215X Data Logger Demo
Board must be electrically removed from the system. The following explains how to
accomplish this:
1. Remove Jumper on JP7 (this removes V DD from the integrated optical
transceiver (U5)).
2. Remove Jumper on JP1.
If jumper is removed, ensure that the short between two pins (on bottom side of
board) has been cut.
3. Remove Jumper on JP2.
If jumper is removed, ensure that the short between two pins (on bottom side of
board) has been cut.
4. Plug the discrete optical transceiver board into Header J1 and J5.
Now the optical transceiver daughter board should be operational.
DS51516A-page 44
FIGURE 2-13:
OPTICAL TRANSCEIVER DAUGHTER BOARD INTERFACE
HEADER (J1 AND J5)
J1
J5
? 2004 Microchip Technology Inc.
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