Zebra CRD Quick Reference Guide
Zebra CRD 7500, a four-slot cradle compatible with Symbol’s PDT 7500 Series terminals, offers seamless battery charging and reliable data communication. With its integrated bracket, the cradle can be mounted directly to a wall or used as a desktop model to prevent tipping. The spare battery charging slot ensures uninterrupted power supply, while the LED indicators provide real-time status updates. Connect the cradle to a host computer, printer, or modem via the RS-232 serial cable for efficient data transfer.
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1999-2001 SYMBOL TECHNOLOGIES, INC. All rights reserved.
Symbol reserves the right to make changes to any product to improve reliability, function, or design.
Symbol does not assume any product liability arising out of, or in connection with, the application or use of any product, circuit, or application described herein.
No license is granted, either expressly or by implication, estoppel, or otherwise under any patent right or patent, covering or relating to any combination, system, apparatus, machine, material, method, or process in which Symbol products might be used. An implied license only exists for equipment, circuits, and subsystems contained in Symbol products.
Symbol and the Symbol logo are registered trademarks of Symbol Technologies, Inc.
Other product names mentioned in this manual may be trademarks or registered trademarks of their respective companies and are hereby acknowledged.
Symbol Technologies, Inc.
One Symbol Plaza
Holtsville, N.Y. 11742-1300 http://www.symbol.com
Patents
This product is covered by one or more of the following U.S. and foreign Patents:
U.S. Patent No. 4,460,120; 4,496,831; 4,593,186; 4,603,262; 4,607,156; 4,652,750;
4,673,805; 4,736,095; 4,758,717; 4,816,660; 4,845,350; 4,896,026; 4,897,532; 4,923,281;
4,933,538; 4,992,717; 5,015,833; 5,017,765; 5,021,641; 5,029,183; 5,047,617; 5,103,461;
5,113,445; 5,130,520; 5,140,144; 5,142,550; 5,149,950; 5,157,687; 5,168,148; 5,168,149;
5,180,904; 5,216,232; 5,229,591; 5,230,088; 5,235,167; 5,243,655; 5,247,162; 5,250,791;
5,250,792; 5,260,553; 5,262,627; 5,262,628; 5,266,787; 5,278,398; 5,280,162; 5,280,163;
5,280,164; 5,280,498; 5,304,786; 5,304,788; 5,306,900; 5,321,246; 5,324,924; 5,337,361;
5,367,151; 5,373,148; 5,378,882; 5,396,053; 5,396,055; 5,399,846; 5,408,081; 5,410,139;
5,410,140; 5,412,198; 5,418,812; 5,420,411; 5,436,440; 5,444,231; 5,449,891; 5,449,893;
5,468,949; 5,471,042; 5,478,998; 5,479,000; 5,479,002; 5,479,441; 5,504,322; 5,519,577;
5,528,621; 5,532,469; 5,543,610; 5,545,889; 5,552,592; 5,557,093; 5,578,810; 5,581,070;
5,589,679; 5,589,680; 5,608,202; 5,612,531; 5,619,028; 5,627,359; 5,637,852; 5,664,229;
5,668,803; 5,675,139; 5,693,929; 5,698,835; 5,705,800; 5,714,746; 5,723,851; 5,734,152;
5,734,153; 5,742,043; 5,745,794; 5,754,587; 5,762,516; 5,763,863; 5,767,500; 5,789,728;
5,789,731; 5,808,287; 5,811,785; 5,811,787; 5,815,811; 5,821,519; 5,821,520; 5,823,812;
5,828,050; 5,850,078; 5,861,615; 5,874,720; 5,875,415; 5,900,617; 5,902,989; 5,907,146;
5,912,450; 5,914,478; 5,917,173; 5,920,059; 5,923,025; 5,929,420; 5,945,658; 5,945,659;
5,946,194; 5,959,285; 6,002,918; 6,021,947; 6,047,892; 6,050,491; 6,053,413; 6,056,200;
6,065,678; 6,067,297; 6,068,190; 6,082,621; 6,084,528; 6,088,482; 6,092,725; 6,101,483;
6,102,293; 6,104,620; 6,114,712; 6,115,678; 6,119,944; 6,123,265; 6,131,814; 6,138,180;
6,142,379; D305,885; D341,584; D344,501; D359,483; D362,453; D363,700; D363,918;
D370,478; D383,124; D391,250; D405,077; D406,581; D414,171; D414,172, D418,500;
D419,548; D423,468; D424,035 D431,158; D430,159; D431,562.
Invention No. 55,358; 62,539; 69,060; 69,187 (Taiwan); No. 1,601,796; 1,907,875;
1,955,269 (Japan).
European Patent 367,299; 414,281; 367,300; 367,298; UK 2,072,832; France 81/03938;
Italy 1,138,713.
rev. 09/00
Q u i c k R e f e r e n c e
Introduction
This guide presents information on the installation, use, troubleshooting, and maintenance of the four-slot CRD 7500 cradle, which is used with Symbol’s PDT 7500 Series terminals for battery charging and host communication.
The cradle uses an integral bracket which may be removed from the cradle base and mounted directly to the wall. The bracket also serves as a weight when used in the desktop mode to prevent the cradle from tipping over.
This guide provides information on the following:
•
•
Inserting the Terminal in the Cradle on page 3
•
Battery Pack Charging on page 3
•
•
Interconnecting Cradles on page 6
•
•
Set Up
The setup of the cradle includes unpacking, placing the cradle on a tabletop, and connecting the power and communication cables.
Unpacking the Cradle
After opening the shipping box, inspect the contents. You should have received the following:
• One cradle (p/n CRD7500-40R0-xxx)
• This Quick Reference Guide (p/n 70-37769-xx)
You will also need the following:
• One power supply cable (p/n 50-16002-018)
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• One power supply (p/n 50-14001-004)
• One AC line cord (p/n 23844-00-00)
If you are missing any of these parts, or if anything appears to be damaged, please contact your authorized Customer Support
Representative immediately. We strongly recommend that you save the shipping box for storing or shipping.
Parts of the Cradle
Spare Battery
Charging Slot
Terminal Slot
Spare Battery
Charging LED
Communication LED
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Connecting Power
To connect power to the cradle:
1. Connect the power supply cable to the power connector on the back of the cradle.
2. Connect the power supply cable AC plug to a standard electrical outlet.
At power-up, the cradle’s COM LEDs light yellow for 3 seconds.
The COM LEDs blink seven times.
Power Connection
Inserting the Terminal in the Cradle
Insert the bottom of the terminal into the cradle slot, gently. DO
NOT FORCE.
Battery Pack Charging
Charging the Terminal's Battery Pack
Caution: Do not replace the terminal’s battery with a dead battery. If the terminal has a severely discharged battery installed and it is removed from the cradle before the battery is fully charged, this could cause a terminal reboot and the loss of data.
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The lithium-ion (Li-Ion) battery pack is automatically recharged whenever the terminal is properly inserted in the cradle. The terminal may be on or off. The terminal’s charge LED turns yellow while the terminal’s battery pack is charging. Once charging is complete, the terminal’s charge LED turns green. If the terminal’s charge LED is off, either the terminal is not properly inserted in the cradle, no battery pack is present in the terminal, or a faulty battery pack is installed in the terminal. Try charging the battery in the spare battery pack charger slot.
The terminal must be left in the cradle 2 hours to recharge a fully discharged battery pack.
Caution: The temperature range for charging the battery pack is
0
°
C- 50
°
C. Do not operate battery pack charger outside these temperatures.
The terminal contains a safety mechanism so that disposable alkaline batteries are not charged.
To remove the terminal from the charging slot, pull straight up and lift out of the cradle.
Caution: Removing the terminal while the cradle’s yellow COM
LED is blinking disrupts communication between the host and the terminal.
Charging A Spare Battery Pack
If a battery pack is present in the spare battery pack charge slot(s), the spare battery charge LED(s) turns yellow. Once charging is complete, the LED(s) turns green. If the slot’s charge LED is off, either no battery pack is present, the battery is not properly inserted in the slot, or a faulty battery pack is present in the slot. If the charge
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LED is blinking (yellow), a battery fault may have occurred, or more likely the battery was momentarily disconnected (possibly the cradle was shaken), which causes a battery fault. To verify if the battery is faulty when the charge LED is blinking (yellow), remove the battery, wait 2 seconds, and reinsert the battery in the spare battery pack charge slot. If the LED is still blinking, the battery is faulty.
When a battery pack is in a slot but is not being charged, (LED is off, blinking or green), the charger circuit reinitializes every 8 to 12 minutes to allow false fault conditions to be reevaluated, and to keep charged batteries at maximum charged state.
Note: Because of inherent circuit tolerances, there could be a difference in charging times between one spare battery pack charger slot and another. Generally, it takes approximately 5 hours to fully recharge a spare battery in the spare battery charging slot.
Data Communications
Connecting the RS-232 Cable to a Host Computer,
SMG, Printer or Modem
1. Plug an RS-232 serial cable into the communication port located on the right end of cradle.
RS-232
Communication Port
2. Connect the other end of the cable to the serial (COM) port of the host computer or printer.
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Note: In most cases, you must use a null-modem cable.
However, modems and some serial printers (DCE-type) require a DB9 or DB25 connection. For a DB25 connection, use cable p/n 59846-01-00. For a DB9 connection, use cable p/n 59846-03-00 (see your System
Administrator).
Sending Data
To begin serial communication:
1. Insert the terminal in the cradle.
2. As determined by your specific application, press the appropriate key(s) on the terminal to initiate communication.
The cradle's COM LED blinks yellow when communication begins.
Caution: Removing the terminal while the cradle’s COM LED is blinking yellow disrupts communication between the host and the terminal, possibly resulting in a loss of data.
Interconnecting Cradles
Up to 24 four-slot cradles can be connected in series using an RS-
232 inter-cradle cable at 38.4 kbps.
Caution: Each 4-slot cradle must have its own power supply; any other method of power connection is unsafe.
1. Plug one end of the inter-cradle cable into the communication port located on the left end of the first cradle.
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2. Plug the other end of the inter-cradle cable into the communication port located on the right end of the second cradle.
To Host To Next Cradle
RS-232 Inter-cradle Cable
3. Connect a power supply to the second four-slot cradle as described in the Connecting Power section.
4. Repeat the previous steps for any additional four-slot cradles you wish to connect.
Caution: All chained cradles must be powered up at the same time.
When all chained cradles are powered up, only the master cradle’s
COM LED blinks seven times (the COM LED on slave cradles does not blink).
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LED Indications
The following table describes the LED light indications.
Condition LED State
Battery Charging LED
Off Spare battery absent, no charge power, or outside temperature range required for charging battery.
Steady yellow
Steady green
Flashing yellow
Spare battery is charging.
Spare battery is charged.
Abnormal battery, or undetermined status waiting for charging circuit reset.
Communication LED
Off Terminal is not trying to communicate.
On or blinking (yellow) Terminal is sending/receiving data or is ready to send/receive data.
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Troubleshooting
Symptom
Yellow COM LED does not momentarily light when the cradle is plugged in.
Terminal’s charge LED does not light when terminal is inserted in cradle.
Li-Ion battery pack in terminal did not recharge.
Possible Cause
Cradle is not receiving power.
Terminal is not seated firmly in cradle.
Terminal without a battery was placed in the cradle.
Battery pack failed, indicated by flashing yellow spare battery LED.
Terminal was removed from cradle too soon.
Action
Make sure power cable is securely connected and wall outlet is supplying power.
Replace terminal in cradle; terminal must fit securely.
Insert the battery in the terminal and replace in cradle.
Reinsert the battery pack in the spare battery charging slot. If the flashing yellow LED persists, replace the battery pack.
Replace terminal in cradle; approximately 2 hours are needed to recharge a completely dead battery pack.
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Symptom
No data was transmitted to the host or printer, or the data transmitted to host or printer was incomplete.
Possible Cause
Terminal was removed from cradle while yellow
COM LEDs were blinking.
Null modem was not used.
Action
Replace terminal in cradle and retransmit.
Null modem is required for communication to
DTE devices. Retransmit using appropriate null modem.
See your System Administrator.
Cradle charge LED does not light when the spare battery is inserted in the cradle.
Incorrect null modem configuration.
Spare battery is not seated firmly in the cradle.
Li-Ion battery pack in spare battery charging slot did not recharge.
Battery pack failed
(indicated by a flashing yellow spare battery charge LED).
Battery was removed from the spare battery charging slot too soon.
Reinsert the spare battery in the cradle.
Check for damaged contacts in the cradle spare battery slot.
Reinsert the spare battery. If the flashing yellow LED persists, replace the battery.
Replace the spare battery in the spare battery charging slot. It takes approximately 5 hours to completely recharge a spare battery.
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Ergonomic Recommendations
Caution: In order to avoid or minimize the potential risk of ergonomic injury follow the recommendations below. Consult with your local Health & Safety Manager to ensure that you are meeting with your company’s safety programs to prevent employee injury.
• Reduce or eliminate repetitive motion
• Maintain a natural position
• Reduce or eliminate excessive force
• Keep objects that are used frequently within easy reach
• Perform tasks at correct heights
• Reduce or eliminate vibration
• Reduce or eliminate direct pressure
• Provide adjustable workstations
• Provide adequate clearance
• Provide a suitable working environment
• Improve work procedures.
Regulatory Information
Radio Frequency Interference Requirements
This device has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the Federal Communications Commissions Rules and
Regulation. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.
However, there is no guarantee that interference will not occur in a particular installation. If the equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
• Re-orient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
This device complies with FCC Part 15. 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 interference that may cause undesired operation.
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Radio Frequency Interference Requirements - Canada
This device complies with RSS 210 of Industry & Science Canada. 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 interference that may cause undesired operation.
This Class B digital apparatus complies with Industry Canada Standard ICES-003.
Cet appareil numérique de la classe B est conform à la norme NMB-003 d’Industrie
Canada.
CE Marking and European Union Compliance
Products intended for sale within the European Union are marked with the
CE Mark which indicates compliance to applicable Directives and
European Normes (EN), as follows. Amendments to these Directives or
ENs are included:
Applicable Directives
• Electromagnetic Compatibility Directive 89/336/EEC
• Low Voltage Directive 73/23/EEC
Applicable Standards
• EN 55 022 - Limits and Methods of Measurement of Radio Interference Characteristics of Information technology Equipment
• EN 50 082-1:1997 - Electromagnetic Compatibility - Generic Immunity Standard, Part 1: Residential, commercial, Light Industry
• IEC 1000-4-2(1995-01) - Electromagnetic compatibility (EMC) - Part 4:Testing and measurement techniques - Section 2: Electrostatic discharge immunity test.
• IEC 1000-4-3(1995-03) - Electromagnetic compatibility (EMC) - Part 4:Testing and measurement techniques - Section 3: Radiated, radio-frequency, electromagnetic field immunity test.
• EN 60 950 + Amd 1 + Amd 2 - Safety of Information Technology Equipment
Including Electrical Business Equipment
RF Devices
Symbol’s RF products are designed to be compliant with the rules and regulations in the locations into which they are sold and will be labeled as required. The majority of
Symbol’s RF devices are type approved and do not require the user to obtain license or authorization before using the equipment. Any changes or modifications to Symbol
Technologies equipment not expressly approved by Symbol Technologies could void the user’s authority to operate the equipment.
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Warranty
Symbol Technologies, Inc. (“Symbol”) manufactures its hardware products in accordance with industry-standard practices. Symbol warrants that for a period of twelve (12) months from date of shipment, products will be free from defects in materials and workmanship.
This warranty is provided to the original owner only and is not transferable to any third party.
It shall not apply to any product (i) which has been repaired or altered unless done or approved by Symbol, (ii) which has not been maintained in accordance with any operating or handling instructions supplied by Symbol, (iii) which has been subjected to unusual physical or electrical stress, misuse, abuse, power shortage, negligence or accident or (iv) which has been used other than in accordance with the product operating and handling instructions.
Preventive maintenance is the responsibility of customer and is not covered under this warranty.
Wear items and accessories having a Symbol serial number, will carry a 90-day limited warranty. Non-serialized items will carry a 30-day limited warranty.
Warranty Coverage and Procedure
During the warranty period, Symbol will repair or replace defective products returned to
Symbol’s manufacturing plan in the US. For warranty service in North America, call the
Symbol Support Center at 1-800-653-5350. International customers should contact the local
Symbol office or support center. If warranty service is required, Symbol will issue a Return
Material Authorization Number. Products must be shipped in the original or comparable packaging, shipping and insurance charges prepaid. Symbol will ship the repaired or replacement product freight and insurance prepaid in North America. Shipments from the US or other locations will be made F.O.B. Symbol’s manufacturing plant.
Symbol will use new or refurbished parts at its discretion and will own all parts removed from repaired products. Customer will pay for the replacement product in case it does not return the replaced product to Symbol within 3 days of receipt of the replacement product. The process for return and customer’s charges will be in accordance with Symbol’s Exchange
Policy in effect at the time of the exchange.
Customer accepts full responsibility for its software and data including the appropriate backup thereof.
Repair or replacement of a product during warranty will not extend the original warranty term.
Symbol’s Customer Service organization offers an array of service plans, such as on-site, depot, or phone support, that can be implemented to meet customer’s special operational requirements and are available at a substantial discount during warranty period.
General
Except for the warranties stated above, Symbol disclaims all warranties, express or implied, on products furnished hereunder, including without limitation implied warranties of merchantability and fitness for a particular purpose. The stated express warranties are in lieu of all obligations or liabilities on part of Symbol for damages, including without limitation, special, indirect, or consequential damages arising out of or in connection with the use or performance of the product.
Seller’s liability for damages to buyer or others resulting from the use of any product, shall in no way exceed the purchase price of said product, except in instances of injury to persons or property.
Some states (or jurisdictions) do not allow the exclusion or limitation of incidental or consequential damages, so the proceeding exclusion or limitation may not apply to you.
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Service Information
Before you use a terminal, it must be configured to operate in your facility’s network and run your applications.
If you have a problem with running your terminal or using your equipment, contact your facility’s Technical or Systems Support. If there is a problem with the equipment, they will contact the Symbol Support Center:
United States
United Kingdom
Australia
Denmark
France
Italy
1-800-653-5350
0800 328 2424 Asia/Pacific
1-800-672-906 Austria
7020-1718
01-40-96-52-21
2-484441
Canada
Finland
Germany
Mexico
905-629-7226
337-6588
1-505-5794
9 5407 580
6074-49020
5-520-1835
Netherlands 315-271700
South Africa
Sweden
11-4405668
84452900
Latin America Sales Support
Norway
Spain
66810600
9-1-320-39-09
1-800-347-0178 Inside US
+1-561-483-1275 Outside US
Europe/Mid-East Distributor Operations Contact local distributor or call
+44 208 945 7360
70-37769-01
Revision B — February 2001
Symbol Technologies, Inc. One Symbol Plaza Holtsville, NY 11742-1300

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