User's Manual Part 1

CL1TC-4 400W DVB-H Transmitter Installation
Product Manual, Rev. 1 35
4.7.1.2 I/O Serial Port
Four (4
) analog pull down inputs and four (4) analog pull up inputs are available on the I/O
serial port. The analog inputs are monitored by the system controller permitting the user to
set the polarity and voltage threshold that trigger an alarm. See Section 6.5.2
for external
voltage threshold settings and Section 6.5.1
for alarm and trap notification settings.
Pin 1 though pin 4 can be set to report an alarm when the input voltage is greater than (>)
or less than (<) a user defined value. Typically, these pins would be used to monitor an
active device, such as a UPS, that would provide logical voltage levels used to indicate
alarm / no alarm conditions.
Pin 5 through pin 8 can be set to report an alarm when the voltage is greater than (>) or
less than (<) a user defined value. These pins are factory configured to provide 5 VDC and
are typically used to monitor a passive device, such as a magnetic door sensor.
NOTE: For this application, Pin 6 has been connected to the cabinet door switch contacts,
Pin 7 has been connected to the cabinet smoke detector and the Web interface has been
configured accordingly.
Pin No Function Pin Voltage
1 Analog Input (pull down) 0 to 10 VDC
2 Analog Input (pull down) 0 to 10 VDC
3 Analog Input (pull down) 0 to 10 VDC
4 Analog Input (pull down) 0 to 10 VDC
5 Analog Input (pull up) 5 VDC
6 Analog Input (pull up) 5 VDC
7 Analog Input (pull up) 5 VDC
8 Analog Input (pull up) 5 VDC
9 Ground -
Table 4-4 I/O Serial Port Pin-out
4.7.1.3 RS485 Serial Port
The RS485
serial port is used for communication (Machine to Machine) with the HPA.
Pin No Function
1 Relay 1 contact
2 Ground
3 External Reset
4 Rx-
5 Tx+
6 Relay 1 contact
7 Ground
8 Rx+
9 Tx-
Table 4-5 RS485 Serial Port Pin-out