Maxell RFID UNIT2 Step
Specifications
- Model: RFID UNIT2
- Compliance Standards:
- U.S.A: FCC Rules Part 15 Subpart C
- Canada: ISED Rules RSS-Gen Issue 5 / RSS-210 Issue 10
- Europe (EU/UK): RE Directive (2014/53/EU)
- Japan: ARIB STD-T82
- Transmitter Module: FCC ID – UOE-MR1130MB, IC -8250A-MR1130MB
Product Usage Instructions
Installation Environment
Ensure the device is installed in a suitable environment as specified in the user manual.
RF Exposure Considerations
Properly shielded and grounded cables and connectors must be used for connection to host computers and peripherals. The transmitter should not be operated with any other antenna or transmitter.
Label and Compliance Information
The final product should display the information that it contains the specified transmitter module with FCC ID and IC.
How to Make Changes
Only the grantee is authorized to make changes to the device.
Contact the manufacturer for any authorized changes.
FCC Rules and ISED Rules
| Item (Referenced from KDB 996369 D03) | Verdict |
| 2.1 General | Applicable |
| 2.2 List of applicable FCC rules | Applicable |
| 2.3 Summarize the specific operational use conditions | Applicable |
| 2.4 Limited module procedures | Not Applicable |
| 2.5 Trace antenna designs | Not Applicable |
| 2.6 RF exposure considerations | Applicable |
| 2.7 Antennas | Not Applicable |
| 2.8 Label and compliance information | Applicable |
| 2.9 Information on test modes and additional testing requirements | Not Applicable |
| 2.10 Additional testing, Part 15 Subpart B disclaimer | Applicable |
| 2.11 Note EMI Considerations | Applicable |
| 2.12 How to make changes. | Applicable |
General
This user manual describes the integration procedure per Sec. 2.2 to 2.12 of KDB 996369 D03.
List of applicable FCC rules
This device complies with Part 15 of the FCC Rules. Part 15 Subpart C
Summarize the specific operational use conditions
Installation environment
Avoid installing in the following locations.
- Locations outside the operating specifications of this device.
- Places exposed to direct sunlight.
- A hot and humid place.
- Places with a lot of mechanical vibration.
- Locations where there are devices that generate strong magnetic lines of force or shock voltage.
- Locations where explosive gases are generated or stored.
- Places where there are sudden temperature changes and condensation.
- A place surrounded by metal.
- Places where electrically charged objects come close to antennas or signal terminal connectors.
Precautions for use
This product is an electronic device consisting mainly of semiconductors.
Please note that depending on the environment and usage conditions, the following problems may occur. Breakdowns and performance deterioration caused by these are not covered by the warranty.
- Element deterioration due to overvoltage and overcurrent.
- Element deterioration due to long-term stress in places with high ambient temperatures.
- Deterioration of insulation or poor contact of connectors due to humidity and dust.
- Poor connector contact and element corrosion due to corrosive gas.
- Corrosion due to chemicals and element deterioration.
RF exposure considerations
To comply with FCC and ISED rules, the following sentences must be included in the user manual of the final product.
- Properly shielded and grounded cables and connectors must be used for connection to host computers and/or peripherals to meet the FCC emission limits.
- This transmitter must not be co-located or operated in conjunction with any other antenna or transmitter.
- FCC CAUTION: Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
FCC STATEMENT
This device complies with part 15 of the FCC Rules and RSS-Gen of ISED Rules. Operation is subject to the following two conditions:
- This device may not cause harmful interference, and
- This device must accept any interference, including interference that may cause undesired operation.
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment and meets the FCC radio frequency (RF) Exposure Guidelines and RSS-102 of the ISED radio frequency (RF) Exposure rules.
Label and compliance information: Display the following on the final product.
Contains Transmitter Module FCC ID: UOE-MR1130MB and IC: 8250A-MR1130MB.
Additional testing, Part 15 Subpart B disclaimer
The modular transmitter is only FCC authorized for the specific rule parts (i.e., FCC transmitter rules) listed on the grant (FCC Part 15 Subpart C), and the host product manufacturer is responsible for compliance to any other FCC rules that apply to the host not covered by the modular transmitter grant of certification. The final host product still requires Part 15 Subpart B compliance testing with the modular transmitter installed.
EMI Considerations
We recommend using “best practice” RF design engineering testing and evaluation in case non-linear interactions generate additional non-compliant limits due to module placement to host components or properties.
The host manufacturer is responsible for ensuring compliance with the applicable FCC rules for the transmitters operating individually and simultaneously. This includes compliance for the summation of all emissions from all outputs occupying the same or overlapping frequency ranges, as defined by the applicable rules.
How to make changes
Only the grantee may make authorized changes.
Please contact us at the address below.
Website address: https://www.maxell.co.jp/
Grantee Name: Maxell, Ltd.
Mailing Address: 1 Koizumi, Oyamazaki, Oyamazaki-cho, Otokuni-gun
City/State: Kyoto
Zip code: 618-8525
Country: Japan
Contact Name: AKIRA MIYAKE
Telephone Number: +81-75-951-1465
Fax Number: +81-75-952-5860
E-mail: a-miyake@maxell.co.jp
RE Directive
We, the manufacturer (Hitachi High-Tech Corp.) hereby declare that this equipment (cobas8000 c702), model c702, unit, complies with the essential requirements and other relevant provisions of Directive 2014/53/EU.
ARIB STD-T82
By Japanese radio law, the specific model type has been given to the R/W modules used in the RFID UNIT2.
R/W Module Type: TR3-C202 Specified No.: FC-10002
RFID UNIT2 Interface Specification

Serial interface specification
| Item | Specification |
| Communication method | 2-wire half-duplex serial |
| Synchronization method | Start-stop synchronous type |
| Communication speed | 9600/19200/38400 |
| Data length | 8bit |
| Start bit | 1bit |
| Stop bit | 1bit |
| Parity bit | None |
| Flow control | None |
| Byte interval during communication | Communication time between bytes must be within 1 second
*If the byte interval is longer than 1 second, it will be treated as a separate packet.
|
Overview of reader/writer operating modes
ISO15693 compliant RF tag always returns a response to the reader/writer after receiving a command from the reader/writer.
Command mode
This mode executes processing according to commands from the host device. Use this mode when executing ISO15693 related commands.

This mode executes processing according to commands sent from the host device. Used to perform the following operations.
- When executing reader/writer control commands
- When executing the reader/writer setting command
- When executing RF tag communication command
Reader/writer state transition
The state transition of a reader/writer whose RF transmission signal setting is set to “ON at startup” is as shown in the figure below.

After the reader/writer is powered on, it starts up in the “ready state: RF transmission signal ON” state. The transition between RF transmission signal ON/OFF is performed using the RF transmission signal control command.
(You can also transition to the RF transmission signal ON state by executing the RF transmission signal ON command or the RF tag communication command.)
By using the power state control command, the reader/writer transitions to the power down state.
RF transmit signal settings(ON at startup)
This is a setting to start outputting the RF transmission signal when the reader/writer is powered on.

S6700 compatibility mode
By setting RFID NUIT2 to S6700 compatibility mode, it can operate in the same way as the previous model RFID UNIT.
Verify processing
RFID UNIT2 performs verification processing when writing data to the RF tag and locking it.
Performing read processing after writing data,a and performing lock processing, and confirming that the processing is complete.
- Commands targeted for verification processing are performed only on RF tags for which option_flag = 0 when performing data writing and lock processing.
Verification processing is performed using the following command.- Write Single Block
- Lock Block
- Write AFI
- Write DSFID
- Write Bytes
- Simple Write
- NACK response command
RFID UNIT2 is designed to always receive a NACK response when LockAFI or LockDSFID is executed on an RF tag with option_flag = 0.
Retry processing
When using S6700 compatibility mode, it operates with the same specifications as the previous model RFID UNIT.
About ISO15693ThroughCmd
ISO15693Throughcmd cannot be used in S6700 compatibility mode.
Communication format
The communication formats for commands sent from the host device to the reader/writer and responses returned from the reader/writer are as follows.
| Label | STX | Address | Command | Data length | Data section | ETX | SUM | CR |
| Bytes | 1 | 1 | 1 | 1 | 0-255 | 1 | 1 | 1 |
Communication format details
| Label name | Bytes | Detailed content |
| STX | 1 | [02h] Code indicating the beginning of the packet |
|
Address |
1 |
[When sending command] Normally, set “00h”.
All reader/writers will execute command processing and return a response, regardless of the reader/writer ID. |
| [When receiving a response] Normally “00h” is set. | ||
| Command | 1 | See command code list |
|
Data length |
1 |
【00h〜FFh】
This is the number of bytes of data stored in the “data section label.” The length of the entire packet is data length + 7. |
| Data section | variable | Depends on the command. |
| ETX | 1 | [03h] Code indicating the end of the packet |
| SUM | 1 | [Sum value from STX to ETX] |
| CR | 1 | [0Dh] Line break code |
Data array
- Data is sent LSB first (lower byte first).
- When reading RF tag data, the lower byte of the lower block is set first.
- When writing RF tag data, set the lower byte of the lower block first.
Command response
- The reader/writer returns responses to commands from the host device.
- When sending commands consecutively, be sure to send the next command after receiving the response of the previous command.
Note
that some commands do not return a response.
Command code list
RF tag communication command
| Command name | Command
(3rd byte) |
Detailed command
(5th byte) |
| ISO15693 command | ||
| Inventory |
78h |
01h |
| Stay Quiet | 02h | |
| Read Single Block | 20h | |
| Write Single Block | 21h | |
| Lock Block | 22h | |
| Read Multi Block | 23h | |
| Write Multi Block | 24h | |
| Select Tag | 25h | |
| Reset To Ready | 26h | |
| Write AFI | 27h | |
| Lock AFI | 28h | |
| Write DSFID | 29h | |
| Lock DSFID | 2Ah | |
| Get System Info | 2Bh | |
| Get M Block Sec St | 2Ch | |
| Takaya original command | ||
| Inventory2 | 78h | F0H |
| Read Bytes | A0h | |
| Write Bytes | A1h | |
| Lock Bytes | F6h | |
| RDLOOP Cmd | F2h | |
| Simple Read | 52h | – |
| Simple Write | 4Ah | – |
RFID UNIT2 Setup Procedure
The following shows the setup procedure for RFID UNIT2.
- Confirm that the model and the type of RFID UNIT2 are correct. To setup “RFID UNIT2”, attach the ferrite core 20cm from the Antenna with 3 turns.
- Attach the mold and the packing to the reader’s antenna. Then, fix the reader’s antenna to the holding plate.
- Fix the RFID UNIT2 to c702 using M4 screws.
- Hold power line and serial line with clamps. Then, connect P13 connector to J13 connector of 232DIST2 circuit board on c702.
- Hold the reader’s antenna cable with clamps. Then, fix the reader’s antenna assembly to c702 (1ch) using M3 screws.
- Similar to the step 5 above, fix the reader’s antenna assembly to c702 (2ch and 3ch) using M3 screws.
- Attach all covers to c702.
FAQs
Q: What are the compliance standards for the RFID UNIT2?
The RFID UNIT2 complies with FCC Rules Part 15 Subpart C, ISED Rules RSS-Gen Issue 5 / RSS-210 Issue 10, RE Directive (2014/53/EU), and ARIB STD-T82.
Q: How should I handle RF exposure considerations?
Use properly shielded and grounded cables and connectors for connections. Do not operate the transmitter with any other antenna or transmitter.
Documents / Resources
![]() | RFID UNIT2 Step |
References
- co.jpco.jp
- マクセル株式会社 - Maxellwww.maxell.co.jp
- User Manualmanual.tools


