SES RPKSERIAL90 Serial I/O Option with 90 Degree Connector for TEC and CAT Systems
The SES RPKSERIAL90 serial I/O option is used on compatible SES telephone entry controllers when a serial communication path is required. In CAT and TEC systems, serial I/O can be used to connect a local computer or related programming/data device to the entry controller, depending on the product generation and software. The 90 degree connector reference matters because cabinet clearance, board location, and harness orientation may affect whether the service part fits properly in an existing panel. This part is different from an Ethernet network interface and different from a 56K modem. Correct selection keeps the communication method matched to the way the property actually manages the entry system.
Compatible With
- Select Engineered Systems TEC series telephone entry systems that support serial I/O hardware
- Select Engineered Systems TEC1 series products that support OPTKSERIAL90/RPKSERIAL90 serial interface
- Select Engineered Systems CAT series systems where serial I/O is supported by the controller and documentation
- Existing field units needing a serial I/O option with 90 degree connector style
- Local computer or data/programming connections using supported SES software and cabling
- Related option use: OPTKSERIAL90 serial I/O interface
Features and Specifications
| Specification | Details |
|---|
| Manufacturer | Select Engineered Systems |
| Product Type | Serial I/O communication option |
| Part Number | SES-RPKSERIAL90 |
| Application | Local serial communication for compatible CAT/TEC systems |
| Compatible Product Type | SES TEC, TEC1, and CAT systems where supported |
| Connector Style | 90 degree connector reference |
| Notes | Not an Ethernet NIC or 56K modem |
Also Known As / Related Part Numbers
- RPKSERIAL90
- SES-RPKSERIAL90
- RP KSERIAL90
- OPTKSERIAL90
- OPT K SERIAL90
- Serial I/O Option
- Serial I/O with 90 Degree Connector
- TEC/CAT serial interface
- Related communication parts: RPNIC3, OPTNIC3, RPMODEM56K
Technician Note
If the entry system will not communicate locally, check cable type, COM port settings, software version, port assignment, and the existing communication board before replacing the serial I/O option.
Before Ordering
- Confirm the controller supports RPKSERIAL90 or OPTKSERIAL90.
- Verify whether the system needs serial, modem, or network communication.
- Check the existing connector orientation and cabinet clearance.
- Confirm supported SES software and cable requirements.
- Do not substitute for RPNIC3 or RPMODEM56K unless the communication method is being changed intentionally.
Important Ordering Warnings
- Communication option replacement may require software setup and should be tested with the actual programming computer or service device after installation.
Professional Advisory
For telephone-entry, access-control, camera, relay, or communication-board service, disconnect power where required and use a qualified access-control technician when wiring, board replacement, network setup, or field programming is outside the installer's scope. Do not bypass required gate, door, or life-safety devices.
Product Questions and Answers
What is RPKSERIAL90 used for?
It provides a serial I/O communication option for compatible SES TEC, TEC1, and CAT telephone entry systems.
Is RPKSERIAL90 the same as OPTKSERIAL90?
They are closely related serial I/O references, but the correct part should be matched to the existing field unit and SES documentation.
Does this provide Ethernet communication?
No. Ethernet or TCP/IP communication is handled by NIC-style products such as RPNIC3 or OPTNIC3.
Why does the 90 degree connector matter?
Connector orientation can affect fit inside the cabinet and how the cable routes to the controller.
What should be checked before ordering?
Check the SES model, controller generation, communication method, connector style, software, and cable requirements.
