# cnPulse to CMM5 Cable Pinout

**URL:** https://community.cambiumnetworks.com/t/cnpulse-to-cmm5-cable-pinout/59260
**Category:** cnPulse
**Tags:** knowledge-base
**Created:** [December 5, 2018, 10:33pm UTC](https://community.cambiumnetworks.com/t/cnpulse-to-cmm5-cable-pinout/59260 "2018-12-05T22:33:30Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![Bruce\_Collins](https://d10gw3vjmzyp8.cloudfront.net/user_avatar/community.cambiumnetworks.com/bruce_collins/32/11547_2.png) [@Bruce\_Collins](https://community.cambiumnetworks.com/u/Bruce_Collins)
#### Post date: [December 5, 2018, 10:33pm UTC](https://community.cambiumnetworks.com/t/cnpulse-to-cmm5-cable-pinout/59260/1 "2018-12-05T22:33:30Z")

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cnPulse is used to provide a 1PPS signal to CMM5 power injectors.&nbsp; The cable is an RJ-45 8-pin to RJ-12 6-pin.&nbsp; This is available from Cambium under model N000000L125A as a 20m shielded cable.&nbsp; Alternatively the pinout is shown below for those operators wishing to create their own cable.

![cnPulse to cmm5 cable.jpg](https://d1okf4ta8xniw3.cloudfront.net/original/2X/7/70315c0fb832ccb00fe7caf7a89573b66a4ade3b.jpeg "cnPulse to cmm5 cable.jpg")

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### Author: ![Marty\_Burns](https://d10gw3vjmzyp8.cloudfront.net/letter_avatar_proxy/v4/letter/m/77aa72/32.png) [@Marty\_Burns](https://community.cambiumnetworks.com/u/Marty_Burns)
#### Post date: [September 20, 2021, 2:54pm UTC](https://community.cambiumnetworks.com/t/cnpulse-to-cmm5-cable-pinout/59260/2 "2021-09-20T14:54:18Z")

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What is the part number for the RJ12-RJ12 cable to add the second CMM5 to expand to 8 ports?

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### Author: ![Martin\_Keding](https://d10gw3vjmzyp8.cloudfront.net/user_avatar/community.cambiumnetworks.com/martin_keding/32/12198_2.png) [@Martin\_Keding](https://community.cambiumnetworks.com/u/Martin_Keding)
#### Post date: [September 30, 2021, 3:02am UTC](https://community.cambiumnetworks.com/t/cnpulse-to-cmm5-cable-pinout/59260/3 "2021-09-30T03:02:30Z")

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It a straight through 6pin (Rj11/12) cable.