Cambium Networks PMP/PTP 450i Series, User Manual

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System hardware Cabling and lightning protection
Page 2-34
Chapter 2:
Aux port to alignment tone headset wiring
A standard 32 ohms stereo headset can be connected to the AUX port to use the audio alignment tool. The
diagram of the adapter is provided in Figure 16 . The recommended values for both resistors are 220 ohm, 0.25W.
Different resistor value can be used to optimize the level of the audio signal depending on the headset
characteristics and the level of ambient noise Figure 16 Alignment Tone Cable
Table 34 Aux port PoE cable pinout
RJ45 pin
(AUX port)
Signal description Serial component
Jack socket
(to jack plug of headset)
5 Alignment tone out
220 ohms resistor Ring
220 ohm resistor Tip
7 GPS 0v None Sleeve
Alternatively, a readymade headset adapter can be ordered from Best-Tronics ( http://btpa.com/Cambium-
Products/ ) with the following part number:
Table 35 Alignment tone adapter third party product details
Reference Product description
BT-1277 Headset alignment cable for the Cambium Networks PMP450i and
PTP450i product lines
2 2
0
Ω
2 2 Ω
0
Resistors
Pin 7
Pin 4
Left / tip
Right / ring
Sleeve / Common