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ACRONYMS AND ABBREVIATIONS

DEFINITIONS

T (Delta-T)	Delta () is a Greek Letter that stands for change or difference. T stands for temperature.
absorbers	Protect CLU from damage during handling and movement
aft end cap	Protects the round from damage during handling and movement; permanently attached to round.
ATTK SEL	attack select. switch between the top attack mode and the direct attack mode.
backlighting	Indirect IR signature that indicates the presence of a target.
battery coolant unit	Provides electrical power and seeker cooling for the missile.
basic skills trainer	An indoor/shipboard training device that can train and test the gunner's skills in a wide variety of situations.
carry handle	Used to lift and carry the round.
CLU interface connector	Provides electrical interface with the round.
CTRS	contrast. The contrast is adjusted by moving the GATE ADJ/CTRS and BRT switch horizontally (left and right).
DFOV	day field of view. The power switch is in the DAY position, the Javelin is in mode. The status indicator located on the CLU display. This appears as a green indicator light when the day FOV is selected.
daysight	Optical system that works similar to a telescope. Develops a magnified, visible-light target image for the gunner.
desiccant	Used to prevent moisture from gathering in the missile and causing possible missile malfunctions. It is located inside forward end cap.
DIR	Direct attack mode. When the DIR indicator light is lit the direct attack mode is selected.
elapsed time meter	Records total operating hours of CLU. It is located in battery compartment.
electronic safe, arm and fire	Controls arming and ignition of the missile motors, arming, and detonation of the warhead charges.
eyepiece	Allows viewing of CLU display image. Contains diopter adjust ring that gunner uses to focus CLU display image, eyecup.
face shield absorber	Shields gunner's face from possible launch debris and helps protect CLU from damage during handling and movement.
FLTR SEL switch	filter select. The filter select switch is used to select the night vision sight (NVS) filter. The NVS filter prevents the CLU from being detected by enemy countermeasures.
fire trigger	Used to initiate missile firing sequence
FOC ADJ switch	focal adjust. Used to adjust the focus of the CLU display image during NVS (NFOV or WFOV) operation.
forward end cap	Protects the round from damage during handling and movement. It provides environmental and electromagnetic interference (EMI) protection for the missile. It is removed prior to missile firing.
field tactical trainer	Designed to be used as an outdoor trainer and is equipped with the MILES.
GATE ADJ/CTRS and BRT	It serves two functions depending on whether the CLU display image is from the NVS or the seeker. In the NVS mode the controls adjusts the brightness and contrast. In the seeker mode the controls control the track gates by moving them in or out horizontally and vertically.
humidity indicator	Displays status of relative humidity inside CLU. It is located on right side of CLU. It displays the status of relative humidity inside LTA. Located on the forward end cap.
latch assembly	Latch assembly together with the alignment fork and latch release provide the mechanical interface with the CLU.
launch tube assembly	Serves as a handling container and launch platform for the missile. Provides environmental and electromagnetic interference (EMI) protection for the missile.
left handgrip controls	Consists of focus adjust (FOC ADJ), sight select (SGT SEL), and filter select (FLTR SEL) switches.
lock-on	Simulated seeker lock-on has been commanded.
locking pin	Locks the forward end cap latch in place and prevents movement.
missile simulation round	Simulates the weight and balance of the round and has CLU and BCU connectors.
night vision sight	Optical system that converts an IR target image into a visible-light target image for the gunner.
power switch	Four-position rotary switch used to place the Javelin into operation.
right handgrip controls	Consists of gate adjust (GATE ADJ), contrast and brightness (CTRS and BRT), and attack select (ATTK SEL) switches.
round interface bracket	Round interface bracket together with the alignment pin and round interface catch provide the mechanical interface with round.
round interface connector	Provides electrical interface with the CLU.
seeker trigger	Used to initiate seeker mode of operation and seeker lock-on.
shoulder pad	Provides point of balance and support when round is placed on gunner's shoulder.
shoulder strap	Provides a means of carrying the round. Can be placed on gunner's shoulder or diagonally across chest.