Maintenance Functions - 109
Since the PP can be used to unlock a door, it should be
secured when not in use. If you are unable to secure the
PP, remove and reinstall one battery after use. This will
clear the memory and require that the PP be connected
to the console before it can be used again. Connection
to the console requires a management level password;
therefore, proper security is maintained.
Batteries
The PP uses four AA batteries, which are expected to
provide about 50 hours of use. If the display is not
visible, the batteries must be replaced.
Connecting to the Lock
The PP is connected to the lock with the attached cable
(see Figure 8 on page 112). On the bottom of the lock,
to the right, you will see a hole (called a jack). Insert
the end of the cable (the plug) into the jack. Before you
connect the PP to the lock, however, you may first need
to connect it to the console. This generally depends
upon the operation you wish to perform. In fact, the PP
may inform you if it needs to be connected to the
console first. The reasons for this will become clear as
you read further in this section.
Connecting to the HT22
The PP is connected to the HT22 with a 9-pin cable (see
Figure 6 on page 21). Plug one end of the cable into the
connector on the PP. Plug the other end of the cable into
the connector on the rear of the console labeled PP
HTCOM. The connector will only go in one way. Refer
to the sections LOCKS AUDIT TRAIL (p. 80) and Load
Portable Programmer (p. 102) for the steps required to
perform each specific operation.
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