Cambium Networks N000000L125A CMM5 to cnPulse Shielded Cable – 20m
Accessory Cabling to the cnPulse™ Sync Generator
cnPulse has RJ-45 connections for the data ports compared to the uGPS, which had 6-pin RJ-12 connections. for connecting a cnPulse to the AUX port of a PMP 450i radio, a straight-through CAT-5E RJ-45 cable can be used. For CMM5 applications, a new cable is required that converts the RJ-45 connections on cnPulse to the 6-pin connection on the CMM5.
What is cnPulse?
TDD synchronisation is critical for deploying dense, scalable wireless networks, whether in a PTP or PMP topology. One typical source for synchronisation is the GPS satellite signal, which carries a precise one pulse per second (1PPS) clock. Using this clock, wireless networks can synchronise the start and stop time of all transmissions. By synchronising the transmit and receive signals, each Access Point isn’t transmitting while its neighbour is receiving, thereby reducing self-interference, increasing spectral efficiency, and enabling much more dense network deployments.
cnPulse is the latest GPS synchronisation generation device designed specifically for Cambium Networks PMP and PTP radios. The cnPulse module is IP67 (weatherproof and supports a wide temperature range for rugged environments). The GPS receiver is highly reliable and supports both GPS and GNSS signals.
Cambium Networks™ Confidential Restricted 2 cnPulse can be deployed in two alternative ways. There are no configuration or software settings required.
- Mode 1: AUX Serial Mode (uses cnPulse port 1): cnPulse derives power input from the radio or CMM port and returns the 1PPS signal and satellite statistics on port 1. Mode 1 is typically used on CMM5, cnReach, and the AUX ports on PMP 450i, PMP450m, or PTP 450i.
- Mode 2: CambiumSYNC In-line Mode (uses cnPulse port 2 and port 3): cnPulse is deployed in-line with the radio’s CAT-5 drop cable. cnPulse receives power (and data) from the ODU’s PoE power injector on port 3. cnPulse port 2 then outputs PoE+Data+CambiumSYNC to the main input on a radio. Mode 2 is typically used on PTP 550, ePMP™ 2000, and ePMP 3000.
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