SES TEC1A Deluxe Telephone Entry System Details
The SES T1A4L250DLX is a Select Engineered Systems TEC1A Deluxe telephone entry system with a 4-line LCD directory display and 250 phone capacity. It is designed for controlled entry applications where visitors call residents, tenants, employees, or authorized users from the entry panel, and access can be released through the system when properly connected to a compatible gate operator, door strike, magnetic lock, or access-control device.
This Deluxe configuration includes modem, clock/calendar, serial interface, and MUI multi-user interface features. That separates it from the Basic version, which does not include the same Deluxe communication package. The T1A4L250DLX is a practical choice when the site needs a mid-capacity telephone entry system, a larger 4-line directory display, and Deluxe communication features for programming or multi-unit telephone entry layouts.
This model is commonly used for gated communities, apartment properties, condominium entries, commercial buildings, office entry points, parking areas, and secured pedestrian or vehicle access locations. The 4-line LCD display gives the entry panel a larger directory viewing area than the 2-line T1A2L model family, which can help users browse names or directory codes more easily at the entry station.
Compatible With
The SES T1A4L250DLX is commonly associated with the following TEC1A system configuration and applications:
- SES TEC1A Series telephone entry systems
- T1A4L 4-line LCD display TEC1A model family
- TEC1A Deluxe model configuration
- 250 phone capacity / 1000 card capacity TEC1A installations
- Gate entry systems requiring telephone entry and relay output control
- Door access systems using compatible dry-contact relay control
- Community, condominium, apartment, commercial entry, office entry, and parking access applications
- Sites requiring Deluxe features such as modem, clock/calendar, serial, and MUI when properly configured
- Installations requiring surface, semi-flush, or pedestal mounting when matched with the correct mounting hardware and accessories
Not Intended For
- Sites that require the 2-line TEC1A display version unless the correct T1A2L model is ordered.
- Sites that require 50, 125, 500, or 1000 phone capacity unless the correct TEC1A capacity model is ordered.
- Sites that only need the Basic feature package unless the correct BSK model is preferred.
- Sites that require Premium features such as NIC/Ethernet and 2-reader board unless the correct PRM model is ordered.
- Sites requiring a cellular-equipped Premium model unless the correct PRMCL model is ordered.
- Direct replacement of older SES TEC1, TEC1C, TEC1CA, TEC2, CAT, or other SES systems without confirming wiring, mounting, programming, options, and required features.
- Applications requiring a monitored UL325 safety device. This is an access-control / telephone entry system, not a monitored gate safety sensor.
Important Ordering Warnings
- Confirm the exact SES part number before ordering. T1A4L250DLX identifies a TEC1A, 4-line LCD, 250-capacity, Deluxe model.
- Do not confuse this model with T1A4L250BSK, T1A4L250PRM, T1A4L250PRMCL, T1A2L250DLX, or other similar TEC1A part numbers.
- Verify whether the site needs Basic, Deluxe, Premium, or cellular-equipped features. Deluxe models include more communication features than Basic models, but they are not the same as Premium models.
- Confirm the required mounting method. Weather hoods, semi-flush rings, sleeves, pedestals, adapters, and mounting plates may be separate accessories depending on the installation.
- Confirm the available power source, telephone line setup, relay wiring, access-control wiring, modem requirements, serial connection, and MUI requirements before installation.
Features & Specifications
| Manufacturer | Select Engineered Systems / SES |
| Product Type | Telephone Entry / Access Control System |
| Part Number | T1A4L250DLX |
| Series | TEC1A Series |
| Model Configuration | Deluxe, 4-Line LCD Display |
| Phone Capacity | 250 phone capacity |
| Card Capacity | 1000 card capacity |
| Display | 4-line LCD directory display |
| Included Deluxe Features | Modem, clock/calendar, serial interface, and MUI multi-user interface |
| Standard Relays | Two Form C dry-contact door control relays, rated 24V @ 2A |
| Power | +12VDC or 16.5VAC 20VA transformer supplied |
| Programming | Programmable through keypad; modem, serial, and MUI features depend on proper site wiring and configuration |
| Code / PIN Features | Programmable code length from 1 to 4 digits; PIN code fixed at 4 digits |
| Event Log | 1500 event log buffer |
| Memory Type | Non-volatile memory |
| Time Features | Clock/calendar, 8 time schedules, 10 holidays |
| Housing | Stainless steel front door with aluminum back box; weather-resistant housing |
| Approximate Dimensions | 8-1/2" W x 12" H x 2" D |
| Approximate Shipping Weight | 12 lbs. |
| Operating Environment | 0F to +158F; 5% to 95% relative humidity, non-condensing |
| Mounting | Surface, semi-flush, or pedestal mounting when used with the correct installation hardware |
| Important Notes | Access-control device only. Not a gate safety sensor. Verify model, capacity, Deluxe options, mounting, wiring, and site requirements before ordering. |
Also Known As / Related Part Numbers
- SES T1A4L250DLX
- Select Engineered Systems T1A4L250DLX
- TEC1A 4 Line Display HF250 Deluxe
- TEC1A 4-Line LCD HF250 Deluxe
- TEC1A 4 Line Display HF250 Deluxe Includes Modem
- TEC1A 4 Line Display HF250 Deluxe Includes Modem, Clock, Serial, MUI
- TEC1A 4 Line Display HF250 Deluxe Includes Clock/Calendar, Modem, MUI, Serial Port
- T1A4L250 DLX
- T1A4L250DLX Deluxe
- HF250 Deluxe TEC1A 4-Line
- Distributor catalog number 10095315 - verify before using as an internal SKU or cross-reference
- T1A4L250BSK - related 4-line 250-capacity Basic model, not the same configuration
- T1A4L250PRM - related 4-line 250-capacity Premium model, not the same configuration
- T1A4L250PRMCL - related 4-line 250-capacity Premium Cellular model, not the same configuration
- T1A2L250DLX - related 2-line 250-capacity Deluxe model, not the same display style
- T1A4L50DLX, T1A4L125DLX, T1A4L500DLX, T1A4L1000DLX - related TEC1A Deluxe 4-line capacity models
Common Related Options and Accessories
Depending on the site layout and required features, this TEC1A Deluxe system may be used with select SES accessories or options. Confirm accessory compatibility before ordering.
- LED lighted or unlighted stainless steel weather hood
- Semi-flush mount ring
- Back box stainless sleeve
- Pedestals, pedestal adapters, and mounting plates
- Multi-unit interface applications where multiple units must share a single phone line
- Communication board and programming accessories where supported by the selected configuration
- SELCOM software options where supported by the selected configuration
- Pinhole color camera option where compatible with the selected panel configuration
- Card reader or 2-reader board options only when the correct supported configuration is selected
- Cellular interface/router options where a landline replacement or cellular telephone entry setup is required and properly configured
Technician Note
Match this unit by the full SES model number and feature package. T1A4L250DLX identifies the TEC1A series, 4-line LCD display, 250 phone capacity, 1000 card capacity, and Deluxe feature package. Similar TEC1A units may look alike from the front, but can differ by display type, capacity, modem support, serial support, MUI support, NIC/Ethernet capability, reader board support, cellular configuration, and included option boards.
Do not treat the Basic, Deluxe, Premium, and Premium Cellular versions as interchangeable without checking the job requirements. A site that depends on modem, serial, or MUI functionality may not be served correctly by a Basic model. A site that requires Ethernet/NIC or 2-reader board features may need a Premium configuration instead of Deluxe.
Before Ordering, Confirm
- The existing or required part number is T1A4L250DLX.
- The site needs a TEC1A 4-line LCD display, not a 2-line display.
- The required capacity is 250 phone entries and 1000 card capacity.
- The Deluxe feature package is required, including modem, clock/calendar, serial, and MUI.
- The site does not require Premium NIC/Ethernet or 2-reader board features.
- The site does not require a cellular-equipped Premium model.
- The mounting style matches the installation location.
- The required weather hood, pedestal, mounting plate, sleeve, or semi-flush hardware is included or ordered separately if needed.
- The available power source matches the unit requirements.
- The telephone line, modem, serial, and MUI requirements have been verified.
- The relay outputs match the gate operator, door strike, magnetic lock, or access-control interface being controlled.
- Any card reader, software, camera, cellular, or multi-unit interface requirements have been verified before installation.
- The automatic gate system has proper monitored safety devices where required.
Professional Advisory
Telephone entry systems connect to access-control wiring, relay circuits, power, phone lines, communication interfaces, and sometimes card reader or software programming equipment. Improper wiring or incorrect configuration can damage the entry system, gate operator, lock hardware, or related access-control equipment. If the existing wiring, voltage, relay circuit, phone line, modem setup, serial wiring, MUI wiring, or programming requirements are uncertain, installation and replacement should be handled by a qualified gate or access-control technician.
This product is an access-control telephone entry system. It does not replace required monitored gate safety devices, photo eyes, edge sensors, entrapment protection, or other safety equipment required for an automatic gate system.
Product Questions & Answers
Is the SES T1A4L250DLX a 4-line or 2-line display model?
The T1A4L250DLX is a TEC1A 4-line LCD display model. If the installation requires the smaller 2-line display version, confirm the correct T1A2L model before ordering.
What makes this the Deluxe version?
The T1A4L250DLX is commonly listed with the Deluxe feature package, including modem, clock/calendar, serial interface, and MUI multi-user interface. It is not the same configuration as the Basic or Premium models.
What capacity does the T1A4L250DLX support?
This model is listed as a 250 phone capacity TEC1A system with 1000 card capacity. Confirm the sites directory size and any card access requirements before ordering.
Can this unit control a gate operator or door lock?
Yes, the TEC1A includes two Form C dry-contact relays that may be used for compatible gate, door, or access-control release circuits. The connected equipment and wiring must be verified before installation.
Is this the same as the T1A4L250BSK Basic model?
No. The T1A4L250DLX is the Deluxe version. The T1A4L250BSK is the related Basic version and should not be treated as the same configuration.
Is this a UL325 gate safety device?
No. This is a telephone entry and access-control system. It is not a monitored gate safety photo eye, edge sensor, or entrapment protection device.
