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Series 90L4/Series 90L8/Series 90H8 Scanner Control
The Scanner Control Boards in the Series 90L4, Series 90L8 and Series 90H8 are designed to
communicate through a serial port (COM) instead of a Cablescan I/O board. Since a PC serial
port cannot be daisy chained, the Series 90L4, Series 90L8 and Series 90H8 are limited to one
cabinet (512 test points or 1024 test points for the Series 90L8). For Series 90L4, Series 90L8
and Series 90H8, the other external signals, which include the footswitch and wrist strap
connections, and the remote signals, are available on the PC's parallel (LPT) ports or secondary
serial port(COM), controlled by Series 90 TestRite software. Refer to the section on Remote
Signals for pin assignments.
Series 90L4/L8/H8 Connection Procedure
A Series 90L4/90L8/90H8 can be connected to a PC using either a serial port or USB port on the
PC.
Connecting to Serial Port on PC
Arrange the Series 90L4/90L8/90H8 alongside your PC. Connect the power cords as shown in
Figure 9, and as described below:
1. Verify power switch on rear panel is in OFF position.
2. Connect power cord (part number 9200016) from power connector (male) on rear
panel to an AC power source (100 to 220V~).
3. Connect PC serial port to and tester serial port with 9-conductor cable (9100069).
4. Connect PC to appropriate power source in accordance with PC instruction manual.
Figure 9. Series 90L4/L8/H8 Cable Connections
Series 90 Setup Manual
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