Intermec Janus 2020 User manual

P/N 059955-002
Quick
Reference
Guide
JANUS™2020 Battery Charger

Federal Communications Commission Radio Frequency Interference
Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) this device may not cause harmful interference, and (2) this device must accept any
interference received, including interferences that may cause undesired operation.
This equipment is intended for operation in a commercial environment, in compliance with the
requirements for a Class A digital device, pursuant to Part 15 of the FCC Rules, and it must not be
used in a residential environment; however, it has also been tested and found to comply with the
more stringent requirements for a Class B device, pursuant to Part 15 of the FCC Rules. It generates,
uses, and can radiate radio frequency energy. If not installed and used in accordance with the
instructions manual, it may cause interference to radio communications. If this equipment causes
harmful interference, the user will be required to correct the interference at their own expense.
Note: In order to maintain compliance with FCC Rules, the I/O cables that interconnect between the device
and any peripheral must be specified by Intermec.
Caution: Changes or modifications not expressly approved by Intermec could void the user’s authority to
operate this equipment.
Industry Canada Compliance
This digital apparatus does not exceed the Class B limits for radio emissions from digital
apparatuses as set out in the radio interference regulations of Industry Canada.
Cet appareil numérique n’émet pas de bruits radioéléctriques dépassant les limites applicables aux
appareils numériques de Classe B prescrites dans le règlement sur le brouillage radioéléctrique
édicté par Industrie Canada.
European Union Compliance
This product complies with EN 55022, EN 50082-1, and EN 60950 as required by the
EMC Directive 89/336/EEC as amended by 92/31/EEC and by the Low Voltage
Directive 73/23/EEC as amended by 93/68/EEC.
Additional EMI/RFI Compliance
This device meets the Class B limit requirements of CISPR 22.
Agency Approvals
The JZ2020 is UL Listed (UL 1950), CSA Certified (C22.2 #950) and TUV “GS” Licensed (EN 60950
and DIN VDE 0805) for safety when powered by an external Intermec power supply. UL, CSA, and
TUV have approved Intermec power supply 058399 for use with the JZ2020.

Contents
iii
Contents
Introduction 5
Battery Charger Parts and Functions 5
Top Panel 5
Back Panel 6
Installing the Battery Charger 7
Mounting the Battery Charger 7
Connecting the Power Supply 7
Using the Charger for the First Time 8
Charging Battery Packs 8
Discharging Battery Packs 10
Battery Status Lights 11
Battery Troubleshooting 12

JANUS 2020 Battery Charger Quick Reference Guide
5
This quick reference guide describes the battery charger and explains how to install
and use the charger.
Introduction
The JZ2020 battery charger is an accessory for the JANUS™ 2020 series readers
(J2020, JR2020, JR2020G, JG2020). The charger allows you to:
•charge up to four JANUS 2020 reader battery packs at one time.
•discharge up to four JANUS 2020 reader battery packs at one time.
2020Q.001
Battery Charger Parts and Functions
Top Panel
The top panel of the battery charger has four battery slots to charge and
discharge JANUS 2020 reader battery packs. Each battery slot has its own
microprocessor and works independently of the other battery slots to control
the charging and discharging of its own battery.

JANUS 2020 Battery Charger Quick Reference Guide
6
There are three LEDs for each battery slot to monitor the status of the battery
pack:
Discharge The battery pack is discharging.
Charge The battery pack is charging.
Ready The battery pack is fully charged.
Back Panel
The back panel of the charger has two parts:
Discharge button You use this button to discharge a battery pack in each
empty battery slot. You only need to discharge a battery pack that has lost its
capacity to hold a charge.
Power supply connector You use this connector to attach the external power
supply cable to the charger. The external power supply provides 9.4 VDC for
battery charging and discharging.
Power Supply Connector
Battery Slot
Discharge Button
Discharge
Charge
Ready
Battery LEDs
2020Q.002

JANUS 2020 Battery Charger Quick Reference Guide
7
Installing the Battery Charger
1. Mount the charger on a desktop or board. (Optional.)
2. Connect the power supply to the charger.
Mounting the Battery Charger
You can permanently mount the battery charger on a desktop or board using
two 4 - 40 UNC 2A screws as shown. Mount the charger before you connect the
power supply.
Note: If you mount the JZ2020 battery charger on a table top or shelf, make sure you
have a vertical clearance of at least 8.0 inches (203 mm) above the charger so that you
can insert and remove battery packs easily. Also remember to leave space behind the
charger so that you can connect the power supply and reach the discharge button on the
back panel.
Connecting the Power Supply
The battery charger uses the Intermec Part No. 058399 power supply, which
has a detachable power cord. The power supply operating range is 100 to 240
VAC at 47 to 63 Hz. To connect the external power supply, attach it to the
power supply connector on the back panel of the charger and plug the power
supply into an AC outlet.

JANUS 2020 Battery Charger Quick Reference Guide
8
Using the Charger for the First Time
You are ready to use the battery charger once the power supply is connected
and plugged in. If there are no JANUS 2020 battery packs inserted in the
charger, the battery LEDs on the top panel are all turned off. To test the charger
and make sure it is operational, insert a battery pack into an empty battery slot.
One or more battery LEDs for that slot will turn on or start flashing, and you
can begin using the battery charger.
If no LEDs turn on or start flashing, make sure the power supply is plugged
into an AC outlet and there is power to the outlet. Check to make sure the
power supply is connected to the battery charger. If the charger is installed
correctly and still no LEDs light or flash with a battery pack inserted, there may
be a problem with the power supply or the battery charger. Contact your
Intermec representative for assistance.
Charging Battery Packs
You can charge up to four JANUS 2020 NiCad battery packs concurrently.
Only use the battery charger to charge JANUS 2020 battery packs. Do not
attempt to charge other types of battery packs in the charger.
In this section, three LED icons that represent the state of each battery LED
may appear next to the step.
Discharge Charge Ready
off flashing on
To charge a battery pack
1. Push each battery pack into any empty battery slot on the charger.
2. If
y
ou are char
g
in
g
a batter
y
p
ack for the first time, the Char
g
e LED flashes
to indicate that the char
g
er is
p
rechar
g
in
g
the batter
y
. Once a batter
y
p
ack
has been
p
rechar
g
ed or if
y
ou have char
g
ed the batter
y
p
ack before, the
Discharge and Charge LEDs start flashing.
If none of the battery LEDs for the slot begin to flash, the battery pack is not
fully inserted in the slot. Push the battery pack all the way into the slot.
Note: If you see any other combination of LED lights, there may be a problem with
the battery pack. Refer to the “Battery Status Lights” section later in this quick
reference guide to determine the problem.

JANUS 2020 Battery Charger Quick Reference Guide
9
Charging a Battery Pack
2020Q.004
Power Supply Battery Pack
3. The charger begins charging the battery packs. Each battery slot works
independently to completely charge its own battery pack within 2.5 hours.
4. When a battery pack in a slot has been fully charged, the Charge LED
flashes and the Ready LED is lit to indicate the charger has finished
charging the battery pack. You can remove the battery pack from the slot.
If you leave the battery pack in the slot, the charge current to the battery
pack is reduced to maintain the full charge, but not overcharge the battery
pack.
If you lose power to the battery charger, all battery packs in the charger begin
charging or maintain their full charge when the power is returned.
Note: The optimum battery temperature to begin charging battery packs is 68°F
(20°C). Battery packs charged at 68°F (20°C) have a higher charge capacity and hold
more charging cycles than battery packs charged at a higher temperature.

JANUS 2020 Battery Charger Quick Reference Guide
10
Discharging Battery Packs
The battery charger is designed to maximize battery life and prevent the loss of
battery capacity due to the memory effect associated with NiCad batteries.
Usually it is not necessary to discharge a battery pack before charging it. If a
battery pack is unable to hold a full charge, you can use the charger to
discharge the battery pack before charging it.
The discharge button on the charger only activates the “discharge” cycle for
each empty battery slot. If there are battery packs in one or more battery slots
when the button is pressed, they continue charging or discharging.
To discharge a battery pack
1. Press the discharge button on the back panel of the charger before inserting
the battery pack. The Discharge LED lights on each empty slot.
Once the Discharge LED turns on for the empty slot, you have 15 seconds
to insert a battery pack. If the Discharge LED goes out before you insert the
battery, press the discharge button again.
Discharge Button
2020Q.005
2. Insert the battery pack into any empty slot on the charger. The Discharge
LED flashes and the charger begins discharging the battery. Allow several
hours to completely discharge the battery pack.
Once the battery pack is discharged, the Discharge and Charge LEDs start
flashing and the charger begins charging the battery pack.
If you lose power to the battery charger, all battery packs in the charger begin
charging when the power is returned. If a battery was not completely
discharged when the power was lost, remove the battery pack from the slot
and repeat the steps above to discharge the battery pack.

JANUS 2020 Battery Charger Quick Reference Guide
11
Battery Status Lights
The battery LEDs allow you to monitor the status of the battery pack that is
inserted in each battery slot. The following table shows the possible lighting
combinations that you may see and the status each indicates.
2020Q.006
The dock or charger is waiting for a battery, or
there is no power to the dock or charger.
The battery is about to begin charging.
The battery is charging.
The battery is charged and ready.
The discharge button has been pushed and
the slot is waiting for a battery to discharge.
The battery is discharging.
The battery did not charge in the allotted
time. The battery may be damaged.
The battery has poor contact with the battery
slot contacts or the battery may be damaged.
(Discharge and Ready LEDs flash alternately)
A battery has been inserted that is not
supported by the dock or charger.
(all three LEDs flash in order)
The battery temperature is out of range.
(Discharge and Ready LEDs flash
alternately with Charge LED)
A battery has been inserted
that may be damaged.
(all three LEDs flash together)
= off = on = flashing
Note: When an LED flashes, it is either a solid,
intermittently flashing light, or a dim, rapidly
flashing light.

JANUS 2020 Battery Charger Quick Reference Guide
12
Battery Troubleshooting
Battery LEDs Problem Solution
Discharge and Ready
LEDs flash alternately
with Charge LED.
The battery pack must always be
between 50°F and 104°F (10°C
and 40°C) to begin charging. If
the battery pack temperature is
outside this range, the charger
stops charging the battery pack.
Remove the battery pack from the slot and
make sure the battery pack is within the
temperature range before you try to charge it
again. To prevent temperature problems, keep
the battery charger in a room that is within the
temperature range and let the battery packs
cool down before charging them.
Discharge and Ready
LEDs flash alternately.
There is bad contact between the
battery pack and the charger, or
the battery is damaged.
Take the battery pack out of the slot and
disconnect the power supply to the charger.
Use rubbing alcohol and cotton swabs to clean
the contact points on the battery pack and in
the charger battery slot. Connect the power
supply to the charger and repeat the
procedure to charge or discharge the battery
pack. If that does not fix the problem, your
battery pack may be damaged.
All three LEDs flash at
the same time.
The charger cannot raise the
battery voltage to an adequate
level. All three battery LEDs
continue to flash at the same time
until the battery pack is
removed.
There may be something wrong with the
battery pack. Remove the battery pack and
then put the same battery back into the slot. If
all three LEDs flash again, you have a bad
battery pack that needs to be replaced.
The Ready LED
flashes.
The charger cannot fully charge
the battery pack within 2.5 hours. There may be something wrong with the battery pack. Remove the battery pack and try
discharging and then charging the battery
pack. If the Ready LED flashes again, you have
a bad battery pack that needs to be replaced.
All three LEDs flash in
order.
You inserted a battery pack that
is not supported by the charger. Remove the battery pack from the slot. Insert a J2020 battery pack. You can only charge J2020
battery packs in the charger.