Keyscan CA8WL-AL - Communication Test Points

Keyscan Inc. A Member of the Kaba Group – CA8WL-AL Rev. B Installation Guide (07.15)
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Test Points – Communication Terminals
The following table outlines the correct voltages for the test points on the RS-232 communication terminal.
Table 3 – Communication Voltage Test Points
Communication Test Point
Voltage
Instructions/Notes
Control Board Communication
Terminal
RS-232 connected to ACU
Connect Voltmeter COM to GND on ACU communication
terminal block or green on data cable.
GND
TD
(-) 9 VDC
TD is an ACU generated voltage
RD
(-) 10 VDC
RD is a PC generated voltage
DCD
Used for modems only
DTR
n/a
CTS
n/a
Figure 14 – Control Board Communication Test Points
RS-485
A
B
RS-232
CTS
DTR
DCD
RD
TD
GND
J10
J11
Left Cover
KI-00357E-05-12