Cirrus Optimus+, Instrument Handbook

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Page 43
Sound Level Meters – User Manual
8.5.3 Threshold triggered output
An external discrete available on the 18 Pin Multi-IO socket at the bottom of the instrument can
be triggered when an audio trigger event is detected. This trigger will toggle the output from 0
to 3.3V and can be used to trigger external devices, for example a camera or noise warning sign.
The trigger output can be enabled in NoiseTools as an event when an audio trigger occurs.
The trigger output is available on the 18 pin Multi-IO Cable ZL:183 wires (black-return, brown
– trigger).
The trigger output is a TTL output. To avoid damage to the instrument do not apply any external
voltage to this signal and limit current drawn to less than 2mA.
8.5.4 Cables
GPS sound level meters can be used with a range of cables. The standard cables are
listed below.
Microphone extension cables
ZL:205 - 5 m microphone extension cable
ZL:210 - 10 m microphone extension cable
ZL:225 - 25 m microphone extension cable
Input and output cables
ZL:100 - 1m USB cable
ZL:171 - Optimus power input cable, 2.1 mm Power Jack, 2m
ZL:172 - Optimus printer cable, 18-way to 6-way RJ12, 1m
ZL:173 - Optimus DPU-414 printer cable, 18-way to 9-way D male, 1m
ZL:174 - Optimus AC & DC output, 18-way to 2 x phono, 1m
ZL:175 - Optimus PC cable, 18-way to RS232 9-pin D female, 1m
ZL:176 - Optimus 12 V battery pack cable 2 m to tinned ends with inline fuse
ZL:177 - Optimus AC output cable, 3.5 mm mono to 3.5 mm stereo jack, 2m
ZL:179 - Optimus cable for ZE:910 isolator, 18-way to tinned ends, 1m
ZL:180 - Optimus modem cable, 18-way to RS232 9-pin D male with 12 V power input 2.1
mm jack, 1m
ZL:181 - Optimus PC cable, 18-way to RS232 9-pin D female with 12V power
input 2.1 mm jack, 1m
ZL:182 - Optimus Fujitsu printer cable, 18-way to multiway, 1m
ZL:183 - Optimus all-purpose cable, 18-way to tinned ends, 2m
ZL:184 - Optimus Hirose HR30 male to male SR30, 1m
ZL:185 - Optimus AC output cable, 18-way to phono, 1m
ZL:186 - Optimus USB cable with Ferrite, USB A to USB B, 1.8m
ZL:150 - Optimus vehicle noise push button