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PerkinElmer Spectrum 100 Series Manual

PerkinElmer Spectrum 100 Series
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L1050069A
6
The following table details the functionality of the pins. To connect a third-party external
detector, present an analog differential signal to pins 10 and 11.
Pin
number
Function Notes
1 Accessory Bus Reset
System reset, normally 5 V but 0 V pulse on
spectrometer power up. Output.
2 0 VL 0 V return for digital circuitry.
3 Accessory Bus Clock
30 7200 Hz TTL compatible signal for Accessory
Bus microcontroller clock drive. Do not pull
more than ±2 mA from this pin. Output.
4 Accessory Bus Abort
Accessory abort to prematurely finish Accessory
Bus command. Output.
5
Accessory Bus serial transmit
(from spectrometer to
external)
TTL compatible serial signal running at 4800, n,
8, 1. Output.
6
Accessory Bus serial receive
(from external to
spectrometer)
TTL compatible serial signal running at 4800, n,
8, 1. Input.
7 0 VL 0 V return for digital circuitry.
8 5 VL
5 V supply for digital circuitry. Do not pull more
than 1 A from this pin. Output.
9 0 VA 0 V analog return for analog circuitry.
10 EXTDET+
External differential positive analog detector
signal. ±11 V full scale. Input. See Note 1.
11 EXTDET
External differential negative analog detector
signal. ±11 V full scale. Input. See Note 1.
12 0 VA 0 V analog return for analog circuitry.
13 +12 VA
+12 V analog for any analog circuitry. Do not
pull more than 100 mA from this pin.
14 12 VA
12 V analog for any analog circuitry. Do not
sink more than 100 mA into this pin.
15
TRIG_IN (NOT
IMPLEMENTED, LEAVE
DISCONNECTED)
Trigger in. Not implemented at the present
time. Input.
NOTE:
The differential input signal has a maximum positive value when EXTDET+ is at +11 V and EXTDET is at 11 V. It
has a maximum negative value when EXTDET+ is at 11V and EXTDET is at +11 V. The input impedance is 100
KΩ on each input with reference to 0 VA.

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PerkinElmer Spectrum 100 Series Specifications

General IconGeneral
BrandPerkinElmer
ModelSpectrum 100 Series
CategoryMeasuring Instruments
LanguageEnglish

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