Part Number
Part Number:
NSN:
NIIN:
Item Name:
TRACKBALL , DATA ENTRY
Definition:
A DEVICE WHICH INCLUDES A SPHERE MOUNTED IN A SMALL OPEN-TOPPED BOX. THE SPHERE IS HAND-OPERATED BY ROTATING IT IN A BACKWARD, A FORWARD, OR A SIDEWAY DIRECTION WHILE MAINTAINING THE DEVICE IN A FIXED LOCATION. THE MOVEMENT OF THE SPHERE GENERATES A SIGNAL WHICH MAY BE USED TO MOVE A CURSOR AND/OR TRACKING SYMBOL ON THE FACE OF A DISPLAY, SUCH AS A CATHODE RAY TUBE; TO INPUT DATA INTO AN ELECTRONIC SYSTEM; AND/OR TO CONTROL THE OPERATION OF A SYSTEM. IT MAY OR MAY NOT INCLUDE ADDITIONAL INPUT DEVICES, SUCH AS SWITCHES OR VARIABLE RESISTORS.
CAGE Information
| Code | Company |
|---|---|
| 22978 | MEASUREMENT SYSTEMS INC. |
Federal Supply Class
Title
MISCELLANEOUS COMMUNICATION EQUI
Inclusions:
INCLUDES MODEMS.
Exclusions:
EXCLUDES ELECTRONIC COUNTERMEASURES EQUIPMENT.
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| ABHP | OVERALL LENGTH | 3.500 INCHES NOMINAL |
| ABKW | OVERALL HEIGHT | 2.070 INCHES NOMINAL |
| FEAT | SPECIAL FEATURES | END ITEM: TRAINER UNIT CEW WORKSTATION AN/SQQ-89 |
| CPLR | UNIT DESIGN | PANEL MOUNTED |
| ABMK | OVERALL WIDTH | 3.500 INCHES NOMINAL |