Z Voltage Is Too High On Transmit; Y Voltage Is Too Low On Transmit; Z Voltage Is Too Low On Transmit; Y And Z Voltages Do Not Overlap On Transmit - Crestron SW-SIMPL Installation & Operating Manual

Crestron SIMPL™ Windows
Installation & Operations Guide – DOC. 5728C

"Z voltage is too high on transmit"

Description
The highest voltage on the Z line must not exceed 6.88 volts during transmit.
Possible Cause
This problem can be caused by a faulty network driver in the control system, by a
short circuit between the Z line and power in the network wiring, or by a break in the
ground line. To verify if this problem is due to a faulty network driver, disconnect all
network wires from your control system and repeat the test. If you receive this
message again, you have a problem with your control system. If not, there is a
problem in your network wiring. A break in the ground line would also result in the
analysis: "Y voltage is too high on transmit".

"Y voltage is too low on transmit"

Description
The lowest voltage on the Y line must be greater than -1.25 volts during transmit.
Possible Cause
This problem can be caused by a faulty network driver in the control system or by a
short circuit between the Y line and ground in the network wiring. To verify if this
problem is due to a faulty network driver, disconnect all network wires from your
control system and repeat the test. If you receive this message again, you have a
problem with your control system. If not, there is a probable short circuit in your
network wiring.

"Z voltage is too low on transmit"

Description
The lowest voltage on the Z line must be greater than -1.25 volts during transmit.
Possible Cause
This problem can be caused by a faulty network driver in the control system or by a
short circuit between the Z line and ground in the network wiring. To verify if this
problem is due to a faulty network driver, disconnect all network wires from your
control system and repeat the test. If you receive this message again, you have a
problem with your control system. If not, there is a probable short circuit in your
network wiring.

"Y and Z voltages do not overlap on transmit"

Description
The lowest voltage on the Y line must not be higher than the highest voltage on the Z
line and The lowest voltage on the Z line must not be higher than the highest voltage
on the Y line during transmit.
Possible Cause
This problem can be caused by a faulty network driver in the control system, or by a
problem in the network wiring. To verify if this problem is due to a faulty network
driver, disconnect all network wires from your control system and repeat the test. If
you receive this message again, you have a problem with your control system. If not,
there is a problem in your network wiring.
Software
Crestron SIMPL Windows • 135