Specifications

CI-1 and CI-8 Communications Interface
1-8
LOOPBACK TEST
Using a known good cable between the host and the CI-1, jumper TX+ to RX-. With the host
operating in the terminal mode, type ABC. The character string ABC should loop back and be
displayed on the screen if the CI-1 is operating correctly. If this test fails, contact WSE Customer
Support.
POWER SUPPLY AND BATTERY
Table 1-1 lists symptoms of power supply or battery problems and suggests diagnostic actions.
Table 1: Model CI-1 Troubleshooting
Symptom Action
Works with battery but not with AC Check transformer
Works with AC but not with battery
Check fuses
Check battery voltages. Each battery should provide a minimum of 12V
Blows fuses; works with AC
Check battery connections
Check battery voltages are less than 13.5V