Customer Interface Unit
– Specific Functions Released
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Cashpower Three Phase V11
– User Guide
© Gyr (Pty) Ltd
8
Customer Interface Unit
– Specific Functions
8.1
General
The customer interface unit effectively acts as a remote display and keypad for the meter. It does not
implement any voucher decryption but does implement some local functions independently as
described below.
8.2
Audible Low-Credit Alarm
This function is provided to give customers the option of having a timeous audible warning that credit
is low and disconnection of the electricity supply could occur soon.
The default factory setting of this function is
enabled
. If required, the customer can change it at any
stage as follows:
Press and hold key ‘0’ on the keypad for 5 seconds. At the end of this period the buzzer beeps
twice (alarm disabled) or once (alarm enabled).
The mode can be toggled any number of times. NB: If the default setting of the alarm is changed via
the keypad, it will revert to the default status every time power is removed from the customer interface
unit.
The alarm is sounded when the
remaining credit
level in the meter reaches half of the
low credit
level -
5.6. At the same time, the
alert
icon is displayed on the LCD and the
alert
LED starts to flash.
Pressing any key on the keypad will silence the alarm but the
alert
indications will continue to be
displayed.
8.3
Other Audible Tones
The customer interface unit generates a variety of tones in response to token entries e.g. there are
two distinctly different tones to indicate TNA or TNR sequences.
8.4
Connecting the Customer Interface to the meter
Figure 7: Close-up picture showing the Customer Interface Unit connection terminals
Customer Interface Unit Terminals
The meter is connected to the customer interface
unit by a two core communications wire up to a
distance of 130 metres.
Communication wires to the customer interface
unit are non-polarised.
NOTE
: For improved lightning protection, it is
recommended that one of the communications
wires are connected to earth.
