Communication Hardware (Usb Configuration); Self-Test Mode - GE T2100-ST1 Service Manual

Theory of Operation

Communication Hardware (USB Configuration)

• PC USB Host Port
• UPS USB Peripheral Port Mini-B Connector
• FTDI FT232RL Virtual Communication Port Driver required
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Self-Test Mode

On power up, the UPS sends out a special test character 'T' and
checks to see if it is returned. This is a check for a shorting
jumper across the transmit and receive lines of the RS-232 serial
port. Note that it is not possible to enter self-test using the USB
port. If the RS-232 lines are determined to be shorted, the UPS
enters the self-test mode. During the self-test mode, 14 stages of
speed and elevation set points are used to exercise the inputs
and outputs. Upon completion of each new set point, another
character is sent out and the process is repeated to advance to
the next stage. In this way, the shorting jumper can be removed
at any point to stop the staging process. The following table
shows the sequence of self-test stages:
70
9600 Baud
No Parity
8 Data Bits
1 Stop Bit
Full Duplex
Stage Incline
1 5%
2 10%
3 15%
4 20%
5 20%
6 20%
7 20%
8 20%
9 20%
10 15%
11 10%
12 5%
13 0%
14 0%
T2100-ST1 Treadmill, 110V / T2100-ST2 Treadmill, 220V
Speed (mph)
0.0
0.0
0.0
0.0
1.0
2.5
5.0
7.5
10.0
7.5
5.0
2.5
1.0
0.0
2097937-002 Rev G
11 March 2019