The following images show the connectors located on the bottom of the pistol grip of the Deluxe model. These connectors can allow those with electronics skills to interface to the LTTO system to a limitted degree.
WARNING! It is possible to permanently damage the LTTO Deluxe Tagger by connecting improper loads to these ports. Use the following information only at your own risk. If you damage your LTTO Deluxe Tagger by improperly connecting external devices to it, the waranty does not apply. In addition, sole responsibility for such damage rests on the user who performs such connections.
The diagram indicates the pinouts of the two connectors, and also shows the color of the internal wires in the HUD extender cable which are associated with these signals. The wiring inside the connectors also matches these colors.
Note that it is not possible to actually insert the HUD extender cable into the Rumble Port connector. First you must cut two keyways in order for it to fit:
The above photo shows before and after adding the keyways to a HUD extender cable. This can be done with an X-Acto knife or a Dremel tool. It is importand to cut the keyways in DEEPER (further up the cable) than the inner face of the connector, as the keying ribs of the recess around the Deluxe's Rumble Port connector extend further out than the connector face. If you do not cut the keyways in deeply enough, the connector pins may not make good contact.
Once the keyways are cut, re-examine the pins to make sure none have been bent or pushed down into the connector.
HUD PORT PINS:
Speaker + and - are connections for a 32-Ohms 0.1 Watt speaker
LED Anodes is the common anode point for the 3 Alert Icon LED's
Lock-On, Scored, and Tagged Cathodes are the individual cathode connections for the associated Alert Icon LED
Connect LED's directly between LED Anodes and the desired Cathode -- there is already an internal current-limit resistor on these pins
RUMBLE PORT PINS:
GROUND is the system digital ground (may be used as analog ground, but noisy)
SWITCHED +4.5V comes on whenever the gun is awake, and goes low (slowly due to a large capacitor) when the gun goes to sleep.
HIT DETECTED goes to Logic High (about +4 volts) for approximately 200 msec whenever a tag is taken
LAZER SIGNAL is the data stream that is modulated onto the IR carrier frequency to generate a Tag signature
+9 VOLTS is always on. It is protected by a self-resetting 300 mA slo-blow fuse ("polyswitch")
(NO CONNECTION) is reserved for future use, it will probably become the external sensor input on future models
IMPORTANT NOTES: Internally, the speaker, VCC, and the switched +4.5Volts are all protected by a single 300 mA fuse. This fuse does NOT self-reset, so if you blow it this will be a real bear to replace. Because of this, I strongly suggest you use the Switched +4.5V as a logic input signal only, using it to switch on and off a supply drawn from the +9 Volts line (and through a voltage regulator if needed). This way, if you accidentally draw too much source current, it will blow the self-resetting fuse and everythig will be fine after a minute or two once it cools down.
+9 VOLTS Information:
Always on -- even when gun is asleep
Ranges from about +9.6V (new batteries) to +7.0V (nearly dead batteries)
Do not attempt to draw more than 50 mA continuously from this supply, as it may also be supplying IR current without warning
SWITCHED +4.5V Information:
High when gun is awake, Low when gun is sleeping
Ranges from +4.5 volts (new batteries) to +3.0 volts (dead batteries)
Do not draw more than 5 mA from this supply (use only as an "enable" signal)
HIT DETECTED and LAZER SIGNAL Information:
Do not draw more than 0.1 mA from these signals
Remember, if you blow it up it's your own fault! TFAL (Think First, Act Later)
