Owner manual

HandPunch 3000/4000 Manual

When input power is restored, the HandPunch switches off of battery

operation and the battery charger is re-enabled to recharge the battery.

Battery charge voltage is set at approximately 13.65 volts, and battery charge

current is limited to approximately 50 mA. A fully discharged battery requires

approximately 12 hours of charge to fully recover.

Additional options installed and speciﬁc conﬁgurations within the HandPunch

make it difﬁcult to predict precisely how long battery support will last, but in

general two hours of battery operation can be expected. While operating on

battery backup due to loss of main input power, the battery output voltage

is constantly monitored by internal circuitry. If the battery voltage reaches

approximately 9.5 volts the HandPunch automatically shuts down. This is done

to prevent full exhaustion of the battery. A yellow indicator on the top panel

illuminates to indicate that the HandPunch is running off of battery power. This

indicator extinguishes when main input power is restored.

ShuntJ7whichislocatedtotheleftofTS3see“Figure4-1”onpage31enables

or disables battery operation on those HandPunchs equipped with optional

battery backup. If a HandPunch does not have the optional battery backup

package installed, J7 is not used. On HandPunchs equipped with the battery

backup option, J7 allows service personnel a mechanism for disabling battery

backup operation before removal of main input power. To fully power down a

HandPunch equipped with battery backup, remove or reposition shunt J7 so

that the two pins protruding up from the main logic board are not connected

to each other. This effectively opens the circuit, removing the battery from any

internal circuitry. Main input power can then be removed and the HandPunch

will fully shut down. Once the HandPunch has fully shut down, shunt J7 may

be reinstalled. The design of the power supply is such that main input power

must be reapplied to re-enable the battery protection mechanism. If shunt J7

is not properly installed, the internal backup battery will not be charged, and in

the event of a main input power loss, the HandPunch will shut down.

The HandPunch with the battery backup option uses a 12 volt 800 ma/hour

sealed lead acid battery to provide backup battery power. This battery is

located immediately inside the rear panel of the HandPunch and plugs into

jack J4 on the keypad control circuit board located in the top of the chassis.

Schlage Biometrics recommends that all HandPunchs be grounded with a

solid, reliable earth ground connection. This connection establishes a common

ground return point used to protect internal semiconductor devices from

ElectroStatic Discharge (ESD) and from external signal line transients. It also

provides a common signal level reference point between externally networked

HandPunchs. Schlage Biometrics recommends that the earth ground source

be identiﬁed by a qualiﬁed electrician familiar with electrical codes as well as

wiring and grounding techniques.

Earth

Ground

and

Shielding