General Description
N-TM 105a PRESET SCALER is Scaler that has the presetting functions of 4-digits. The counter can set up it to 0 through 9999.The counting value displays it with the real time by 7-segment LED of 4-decades.This scaler can use it as the module of the master / slave / local by the switch on front panel.Also, this scaler can select two action modes of a single mode and repeating modes. When the counter value agrees with a presetting value with all the modes the preset signal is output and the preset flag is set. Counter is reset by a reset switch or TTL positive logic signal.(Input impedance 50Ω)

SPECIFICATIONS
*COUNT CAPACITY :4-decades,for 0 through 9999
*INPUT SIGNAL :FAST NIM
*MAXIMUM REPETITION :15MHz(Type)
*MINIMUM PULSE WIDTH :5ns
*PRESET SIGNAL OUTPUT :FAST NIM(100ns Fixed)
*PRESET FLAG OUTPUT :FAST NIM(During “ON” flag)Preset flag is generated when the contents of the counter have agreed with the indications of digital switches.
*INDICATORS :Four decades direct reading 7-segment
LED display.
*FRONT PANEL CONTROLS :Master/Slave/Local
(3-position rotary switch select the operation mode.)
:Start/Stop
(Toggle switch selects manually counting or non-counting condition.)
:Single/Repeat
(Toggle switch selects automatically counting repeat or counting end at one cycle.)
:Reset
(Push switch resets the displays and internal logic to an initial condition.Also, a reset works even when it input a TTL positive logic signal to a reset terminal.)
:Count Preset
(4-digital switches select any count level within the capacity of the unit.)
*CONNECTORS :LEMO-TYPE (00.250)
*POWER REQUIREMENTS :+6V=430mA,-6V=150mA
*DIMENSION :NIM standard single width module