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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.
Module 1
Module 2
920MHz wireless
10MHz
1pps
Figure 1 overview of purpose description
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Summary of Contents for NICT WIWI3GOUKI
- 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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Page 2: Connection Method
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. -
Page 3: Method Of Operation
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. Complete the above connection. Next, 10MHz output and 1pps output are each monitored with an oscilloscope. - Page 4 Reset Master module 3.2.1 Press “Reset” on the Master module.
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Page 5: Federal Communications Commission Interference Statement
*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.