General Information:
This document is a technical drawing for a 2" Inductive Trackball, model TBPS/50/P1/UP2/9448, designed by Esterline Corporation, located in Ringwood, Hants, UK. The drawing number is GA78557, and it is formatted on an A3 size sheet with a scale of 1:1 in millimeters. The design is copyrighted by the company.

Material and Finish:
The body of the trackball is made from molded rigid plastic with a drain plug, colored black. The ball seal is a removable rubber restraining ring, also black. The ball itself is 2 inches in diameter and black in color.

Specifications:
- Resolution: 960 edges per ball revolution.
- Connector: 6 pin, 90° header, 2.5 pitch, Molex 5046 series.
- Supply: +5V D.C. ±5% at 50mA max.
- Output: The unit will autodetect to either PS2 or USB depending on the host.
- Performance: Maximum ball speed is 300 RPM.

Connection Details:
Switch Input (P1):
1. 0V GND
2. Left Switch
3. OV GND
4. Right Switch
5. OV GND
6. Middle Switch
Serial Output (P2):
1. - DATA/DATA (USB/PS2)
2. + DATA/CLOCK (USB/PS2)
3. Earth Ground
4. +5V
5. Signal Ground
6. Earth Ground

Axis Configurations:
The document includes axis configurations with specific measurements and tolerances, indicating precise dimensions for installation and integration.

Change Log:
- Issue 1: 13.12.06, FAI RQD
- Issue 2: 06.06.07, ECN1465
- Issue 3: 28.06.07, ECN1472
- Issue 4: 04.09.07, ECN1483

Contact Information:
For further inquiries, contact Traxsys Input Products via email at [email protected] or phone at +44 (0) 1425 463100.