Specifications

ELAN AUDIO - SENTINEL / RCU-01 RCU01R02 PAGE 29/49
8.1 Front Panel Operation
Using the 'UP' and 'DOWN' buttons, you can scroll through the following screens;
Listed from the power up default and scrolling using the 'UP' button.
• Site name. Use this to verify the site.
• Firmware type, version, time and date of compilation.
• RCU time and date
• Connection Type. Regardless of the connection type set, if connected directly to the Host, the host can connect.
However, if an alarm is generated, the current connection mode will be used to contact the Host.
• Alarm Status. The number of pending alarms will be shown. 'IDLE' means no alarms.
• Event log status. The number of logged events is shown.
• The next 8 screens are the analog inputs. The top line shows the name of the input and the bottom line shows
the decimal analog value (between 0 and 255) and the scaled value with the units description.
• The next 24 screens show the state of the digital inputs and their given names. The S prefix on the top line
denotes that these are Status inputs.
• The next 24 screens show the state of the relay outputs. By simultaneously holding the ACTIVATE button and
the ON button, the relay can be pulsed. If the button is held in for more than 2 seconds, the relay will be latched
on. The 'C' prefix denotes a Control output. Note that outputs 17 to 24 are not implemented on the standard units.
8.2 Change Connection type
To change Connection Type, make sure key switch is set to LOCAL, then using the UP and DOWN buttons, select the
screen that shows 'Connection Type'. Whilst holding in the ACTIVATE button, scroll through the connection choices
with the ON key. When you have reached the correct one, press the OFF key. The display should say 'Saved in
EEPROM'. The new connection method is now saved permanently in the RCU.
Warning. Be sure that the connection mode you select is correct for the device attached, or communication to the
Host may be compromised.
8.3 Operating the Relay Outputs
To operate a relay output from the front panel, scroll through the screens on the LCD until you find the output you
want to operate. Simultaneously holding the ACTIVATE button and the ON button for the relay to be pulsed. If the
button is held in for more than 2 seconds, the relay will be latched on. The 'C' prefix denotes a Control output. Note
that outputs 17 to 24 are not implemented on the standard units.
8.4 I/O Considerations
Refer to the I/O wiring example schematics depicted later in this manual.
8.5 ANALOG Input Pinouts
The pin connections are;
1. Input 1 in
2. Input 2 in
3. Input 3 in
4. Input 4 in
5. Input 5 in
6. Input 6 in
7. Input 7 in
8. Input 8 in
9. Ground
22. Ground
10. Fused 12V
23. Fused 12V
All other pins are ground.
The input impedance is 20KΩ, ground referenced and the input range is 0 to 10V DC. Accuracy is 8 bit with a non-
linearity of +/- 0.5 bit. There is substantial HF filtering provided.
Protection is also provided for voltages exceeding 10V and going below ground.