3: Pulse Stream Output
For retrofitting to older coin based machines, the NV4 can be set to give a stream of pulses via the vend 1
output. Firstly the pulse stream system must be toggled on using the special menu functions (see later section on
Special Menu). Then the number of pulses per channel may be programmed in using the teach process. This is
done as follows:
1. Slide the teach run switch up to Teach, and select the desired channel by repeatedly pressing the select
button. The LED’s will indicate which channel is selected. Note that if a code lock is set, then the code must
be entered first before the channel can be selected. (refer to page. 29) If a code lock is set, when the NV4 is
switched to Teach, LED 1 will be lit. Otherwise none of the LED’s will be lit.
2. Now slide the teach/run switch down to run. As soon as the light starts flashing push the slide switch back up
to teach. If the pulse stream option has been toggled ON you may now enter the desired number of pulses for
this channel. The channel number will be shown in reverse i.e. all LED’s lit except for the chosen channel. If
the Validator is not in Pulse Mode, it will return to the normal channel select stage of step 1.
3. Press the select button for the number of pulses required on that channel. Each time it is pressed the channel
light will flash indicating recognition. You may enter a maximum of 250 pulses per channel.
4. When you have pressed the number of pulses required, slide the teach/run switch back to run. The channel
light will now flash on and off, to play back your pulses so that you may determine if it is as desired.
5. If a note is now inserted and accepted, the vend 1 pin will output this number of pulses. The standard pulse
timing is 100 milliseconds low, 200 milliseconds high. If you wish to change this, please follow the
instruction given in the special functions menu instructions.
4: Binary Output
In the event that the machine needs more than 4 notes to be recognised, but the host machine cannot take
advantage of the serial communication methods then the NV4 can be set to give a binary pattern output on the
four parallel output pins. Refer to the special menu option setting to use this feature.
If the NV4 is set to 15 channel mode it will issue the vend signals as a binary pattern on the parallel outputs for
100 milliseconds. In this way a maximum of 15 different notes can be accepted and controlled.
5: SSP - Smiley® Serial Protocol.
SSP is a secure serial interface and the preferred method of connecting the NV4 to a host machine. SSP is
supported from firmware version 2.50 (older validators can be upgraded to support SSP). SSP is an expandable
open protocol that can be configured in a multi drop mode to allow many devices to be connected to the same
serial interface on the host. Many of the frauds and communication problems associated with conventional
parallel and serial interfaces are over come in SSP.
For a specification of the SSP Protocol please contact Innovative Technology Ltd directly.