Battery Backup; Rear Connectors - Redback A 1709 Operating Manual

50 event weekly timer
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Redback® A 1709 50 Event Weekly Timer
Switch 3 - Time Edit Lockout
When switch 3 is set to the "ON" access to the Time Edit Mode will be restricted. Therefore there can be no changes
made to the current time.
Switch 4 - Clear Memory Lockout
When switch 4 is set to the "ON" access to the Clear Memory Mode will be restricted. Therefore there can be no erasing
of the Station (Event) times stored in memory.
Switch 5-7 Not Used
Switch 8 - Battery Backup
When switch 8 is set to the "ON" position the internal battery is connected to the units clock chip. If power is ever
removed the battery will ensure the clock chip continues to run and therefore keep the current time.
NOTE : This battery does not provide backup power to the entire A 1709 unit. The display will not light up and the unit
will not function. Only the internal clock chip will still be supplied power.
If the entire A 1709 requires backup power a backup power supply can be connected to the 24V DC input.

5.0 BATTERY BACKUP

Inside the unit is the battery used to backup the internal clock chip. If DIP switch 8 is set to "ON" and the unit fails to keep
the correct time after a power failure then it may be possible that the backup battery is a t. To replace the battery, remove
the lid and use a CR2032 battery (such as S 4999A) as the replacement. The location of the battery is shown in Fig 5.1.

6.0 REAR CONNECTORS

6.1 24V DC Connectors
DC sockets have been provided for 24V DC input and a 24V DC backup. These two sockets are connected in parallel inside
the unit, so either could be used as an input or output or both as inputs.
6.2 Interface
These is for future connection of Redback® products. Do not connect leads to these ports.
6.3 Micro SD Socket
This is used for firmware updates (see below for more details). A Micro SD card is not supplied.
It is possible to update the rmware for the A 1709 by downloading the relative update version from
redbackaudio.com.au if available.
To perform an update, follow these steps.
1) Download the Zip file from the website.
2) Remove the Micro SD card from the rear of the A 1709 and insert it into your PC.
3) Extract the contents of the Zip file to the root folder of the Micro SD Card.
4) Rename the extracted .BIN file to update.BIN.
5) Remove the Micro SD card from the PC following windows safe card removal procedures.
6) With the power turned OFF, insert the Micro SD card back into the A 1709.
7) Turn the A 1709 ON. The unit will check the Micro SD card and if an update is required the A 1709 will perform the
update automatically.
10
Redback® Proudly Made In Australia
The backup battery is
located inside the unit
and can be accessed by
removing the lid.
Battery type CR2032
P/No: S 4999A
Fig 5.1
www.redbackaudio.com.au

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