Battery Backup; Rear Connections - Redback A 1708 Operating Manual

Switch 2 - Station Edit Lockout
When switch 2 is set to "ON" access to the Station Edit Mode will be restricted. Therefore there can be no tampering
of the Station (Event) times.
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.

5.0 BATTERY BACKUP

Inside the unit is the battery used to backup the internal clock chip. If DIP switch 1 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 flat. To replace the battery, remove
the lid and use a CR2032 battery (such as Altronics S 4999A) as the replacement. The location of the battery is shown in
Fig 5.1.

6.0 REAR CONNECTIONS

6.1 24V DC Connectors
DC sockets have been provided for 24V DC input and a 24V DC output. These two sockets are connected in parallel inside
the unit, so either could be used as an input or output or both as inputs. Two sockets have been provided so that the
power can be daisy chained to another device. The Altronics P 6717 DC power lead has been designed for this purpose.
The sockets also have a threaded connector so that the Altronics P 0602 2.1mm DC Plug with collar can be screwed onto
the DC socket so that the DC power lead cannot be accidentally pulled out.
6.2 DC Fuse
The A 1708 is fitted with an M205 fuse holder with fuse rated at 2A.
6.3 Interface 1 and Interface 2
These are for future connection of product. Do not connect leads to these ports.
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
Altronics P/No: S 4999A
P 0602
2.1mm DC Plug with collar
Fig 5.1
Fig 6.1