SES OPTK2DR TEC2 Optional Card Reader Interface with 2000 Name Capacity
The OPTK2DR is a Select Engineered Systems option card used to add or support card-reader access functions on compatible TEC2/CAT style systems. In a typical parts-counter situation, this part is ordered when a telephone entry unit must support card-reader input or when an existing SES reader interface card has failed and the system still needs to retain its access-control database.
Because SES product names and distributor listings can describe this part as a TEC2 option card, CAT Wiegand input module, or card-reader interface with user/name capacity, the safest fitment method is to match the exact option number and the installed board. Do not substitute it for a four-door module, relay output card, or clock/memory option unless the SES documentation clearly supports that change.
Compatible With
Commonly associated SES systems
- Select SES TEC2 systems where OPTK2DR is specified
- Select SES CAT systems using a compatible Wiegand/card reader input module
- Two-reader card access applications supported by the SES host controller
- Systems using SELCOM/TEC programming where the installed option card is OPTK2DR
Application notes
- Commonly referenced with 2000 name/user capacity wording in older listings
- Match card-reader format, host board, and software configuration
- Not automatically interchangeable with OPTK4DR four-reader modules
Features and Specifications
| Manufacturer | Select Engineered Systems |
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| Product Type | Optional card reader interface / option card |
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| Part Number | OPTK2DR |
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| Application | TEC2 / CAT card access interface where supported |
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| Compatible Operator Type | Telephone entry with access-control card reader interface |
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| Capacity Notes | Commonly associated with 2000 name/user capacity wording in listings |
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| Reader Type | Verify Wiegand/card reader interface requirements |
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| Notes | Host programming may be required after installation |
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Also Known As / Related Part Numbers
- OPTK2DR
- SES-OPTK2DR
- TEC2 optional card with name 2000 capacity
- TEC2 optional card reader interface
- Two-card reader interface board
- Wiegand input module for CAT systems
- OPTKC2000 - related listing reference; verify exact application
- 778090 - distributor catalog reference commonly associated with OPTKC2000 wording
- OPTK4DR - related four-reader option; not the same part
Technician Note
When card access fails, the problem can be the reader, wiring, power, programming, card format, or the interface board. Test the reader circuit before replacing the option card.
Before Ordering Checklist
- Confirm the host system is a compatible TEC2 or CAT platform.
- Compare the installed board or option number to OPTK2DR.
- Verify whether the application needs two-reader or four-reader support.
- Check card-reader format and wiring before ordering.
- Document existing users, names, schedules, or access data if service work may affect programming.
Professional Advisory
Access-control modules should be installed and programmed by a qualified technician so door/gate release behavior and user data are not lost or misconfigured.
Important Ordering Warnings
Do not assume older capacity wording means the part will upgrade every TEC2 or CAT system without other hardware or programming requirements.
Product Questions and Answers
Is OPTK2DR used for card access?
Yes. It is commonly associated with select SES TEC2 and CAT systems that need a compatible card-reader interface.
Is this a two-reader or four-reader option?
It is commonly described as a two-reader style option. Four-reader applications should be checked against OPTK4DR or the SES parts diagram.
Does this increase all systems to 2000 users automatically?
Not necessarily. Capacity depends on the host system, memory, programming, and supported configuration. Match the option to the exact SES model.
Can this fix a bad keypad or display?
No. OPTK2DR is for reader/card access interface functions, not keypad, LCD, speaker, or dialer repair.
What should be matched before ordering?
Match the installed option card, host TEC/CAT model, reader type, wiring, and software configuration.
