SES OPTSG2SER, SG2 SERIAL INTERFACE OPTION
The SES OPTSG2SER is a Select Gate serial interface option used for service, setup, and programming communication on compatible SG2 and SG3 gate entry systems. It is helpful when a technician needs to connect a computer to the Select Gate unit instead of relying only on front-panel keypad commands. The option is tied to the SG platform and should not be confused with CAT/TEC network interface cards, telephone entry modems, or newer cellular communication kits. Because this option involves opening the unit, moving or checking internal connections, and routing a serial cable without pinching it in the cabinet, it should be handled carefully by someone familiar with SES SG products.
Compatible With
- Select Engineered Systems Select Gate SG2 units with the serial interface option
- Select Engineered Systems Select Gate SG3 units when the serial adapter option is supported
- Field setup and programming applications that require a computer serial connection
- Not a network interface card for CAT/TEC telephone entry systems
Features & Specifications
| Manufacturer | Select Engineered Systems |
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| Product Type | Serial interface option |
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| Part Number | SES-OPTSG2SER |
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| Application | Computer communication / programming option for Select Gate systems |
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| Compatible System Type | SG2 and select SG3 gate entry-control systems |
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| Connection Type | Serial interface, commonly used with a computer and SES software |
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| Notes | Cable routing and internal connection must follow SES instructions |
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Also Known As / Related Part Numbers
- SES-OPTSG2SER
- OPTSG2SER
- SG2 Serial Interface Option
- Select Gate 2 Serial Adapter
- Select Gate SG2 / SG3 Serial Adapter
Technician Note
SG2 and SG3 systems may share option references, but communication accessories should still be matched to the installed board and software. Do not choose this option when the job actually requires Ethernet, cellular, or telephone-line communication.
Before Ordering
- Confirm the installed system is SG2 or SG3
- Verify that a serial interface is the communication method needed
- Check whether the site computer has the required serial connection or approved adapter
- Confirm the technician has the correct SES programming software/instructions
- Inspect the cabinet path so the cable will not be pinched during service
Professional Advisory
Access-control repairs should be handled with the system powered down and with entry/exit operation tested after service. Do not bypass locks, relays, photo eyes, gate safety devices, or monitored safety circuits to make an entry system operate.
Product Questions & Answers
What is the OPTSG2SER option for?
It provides a serial interface option for compatible SES Select Gate SG2/SG3 systems so a computer can communicate with the unit for setup or programming.
Does this replace the keypad programming method?
It can be used for computer-based setup or field programming, but it does not eliminate the need to follow the SG2/SG3 programming instructions.
Is the cable left installed permanently?
The SES guide warns about cable routing and cover closure during service. Final installation should follow SES instructions so the cable is not pinched or damaged.
Will this work with CAT or TEC units?
This row is written for the Select Gate SG2/SG3 serial adapter option, not CAT or TEC telephone entry network boards.
What should be verified before ordering?
Confirm the installed unit is SG2 or SG3 and that the job needs the serial adapter option instead of a network card, modem, or cellular communication kit.
