TISL (Target Identification Set – Laser) Control Panel
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Front lower center console — positioned between the pilot’s knees, directly above the Breakout/Environmental panel and below the main instrument cluster.
Controls the AN/AAS-35(V) Pave Penny laser spot tracker, which detects reflected laser energy from ground-designated targets. It allows the pilot to set laser codes, select modes, and monitor system status.
Controls & Indicators MODE Selector Knob
OFF – Power off.
CAGE – Stabilizes TISL gimbal for ground alignment.
DIVE – Sets scan geometry for dive deliveries.
LVL NAR – Level flight, narrow field of view.
LVL WIDE – Level flight, wide field of view.
SLANT RNG (Range Selector)
OVER 10 miles
10 / 5 / 1 / UNDER 5 miles
ALT ABOVE TARGET Indicator
Mechanical or digital counter (in hundreds of feet).
Displays altitude difference between aircraft and tracked target.
CODE SELECT Wheels (4-digit)
Rotary selectors for laser spot code (1000–1788 range).
Defines which laser-coded spot the sensor will detect.
Includes ENTER push button to confirm code input.
TISL AUX Switch
AUX – Uses auxiliary input from backup system.
BOTH – Dual redundancy (main and aux).
OFF – Deactivates system power.
BITE (Built-In Test Equipment) Button
Activates internal self-test sequence.
OVER TEMP (amber)
DET ACD (Detector Active)
TRACK (Target lock indicator)
Recommended Hardware (Simpit Build)
1 × 5-position rotary switch (MODE).
1 × 5-position rotary switch (RANGE).
1 × 3-position toggle switch (TISL AUX).
1 × push button (ENTER).
1 × push button (BITE).
4 × rotary wheels or rotary encoders (CODE SELECT).
3 × LED indicators (OVER TEMP, DET, TRACK).
Panel material: 3 mm matte black acrylic with white laser engraving.
Knobs: Military-style with white markings.
Lighting: Soft green backlight for night operations.
Optional: Use 7-segment LED or mechanical counter for ALT indicator simulation.
DCS-BIOS Bindings
TISL_MODE_SW
TISL_RANGE_SEL
TISL_ALT_DISPLAY
TISL_CODE_DIGIT_[1–4]
TISL_ENTER_BTN
TISL_BITE_BTN
TISL_AUX_SW
TISL_STATUS_[OVERTEMP/DET/TRACK]
Real Aircraft Operation
The TISL system was designed to passively detect laser reflections from ground designators, aiding target identification without emitting radiation.
Power system to LVL NAR or LVL WIDE.
Input correct laser code via CODE SELECT.
Press ENTER.
Observe TRACK light when a valid laser spot is detected.
Use altitude indication and slant range for targeting confirmation.
Note: In the A-10C II, the TISL is typically disabled, as modern targeting pods (e.g., Litening, Sniper) have replaced its function.