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Appendix A – Mechanical Details
Multi-Tech Systems, Inc. SocketModem MT5600SMI Developer’s Guide 116
5V / 3.3V Jumper – JP6
The operating voltage factory default setting is 3.3V operation. The JP1 jumper must be set to 3.3-volt
operation.
Warning – Be sure to that 5V/3.3V jumper is set to match the requirements of your SocketModem. If this
jumper is set incorrectly, damage to the SocketModem and/or the Test/Demo card could result.
Caution – Use only the provided Multi-Tech Systems, Inc. transformer with the Test/Demo board. Use of
any other power source will void the warranty and will likely damage the Test/Demo board and the
SocketModem. The transformer connector is keyed to prevent improper connection to the Test/Demo
board.
Serial Test/Demo Board Block Diagram
Serial Test/Demo Board Block Diagram