Operation Manual

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WiWi Module Unit 3 Operation Manual (v1.3)

Product Name: WiWi module Trade name:NICT

Model name: WIWI3GOUKI

Frequency Range: 922.5MHz-923.1MHz

Product description

This product provides synchronized signals when used in pair. Modules are

synchronized through 920MHz radio signal and outputs 10MHz and 1pps (pulse

per second) signal.

Figure 1 overview of purpose description

Module 1 Module 2

10MHz

1pps

920MHz wireless

Summary of content (5 pages)

PAGE 1
WiWi Module Unit 3 Operation Manual (v1.3) Product Name: WiWi module Trade name:NICT Model name: WIWI3GOUKI Frequency Range: 922.5MHz-923.1MHz Product description This product provides synchronized signals when used in pair. Modules are synchronized through 920MHz radio signal and outputs 10MHz and 1pps (pulse per second) signal.
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Connection method Antenna Sub Antenna 10Mhz Output LAN Cable 1PP Output AC adaptor IP address Connect the antenna and AC adapter (9V) to the WiWi module （The LAN cable does not need to be connected.） Monitor 10Mhz output and 1pps output with an oscilloscope.
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Method of operation By performing the following operations, it is possible to observe on the oscilloscope how the 10MHz output of the slave is phase-locked to the master and the rises of 1pps are aligned with microsecond accuracy. 1 Complete the above connection. Next, 10MHz output and 1pps output are each monitored with an oscilloscope. 1.1 Compare 10MHz with master and slave, and when trigger is applied to master, slave signal flows to either right or left (frequency is different). 1.
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3.2 Reset Master module 3.2.1 Press “Reset” on the Master module.
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*About LAN cable connection The LAN cable connection is only used for troubleshooting and user does not need to use the connection. FEDERAL COMMUNICATIONS COMMISSION INTERFERENCE STATEMENT This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.