SES TEC1A Telephone Entry System Details
The SES T1A2L500BSK is a Select Engineered Systems TEC1A Basic telephone entry system with a 2-line LCD directory display and 500 phone capacity. It is designed for controlled entry applications where visitors call residents, tenants, staff, or authorized users from the entry station, and access can be released through the telephone entry system when properly connected to the gate operator, door strike, magnetic lock, or access control device.
This model is part of the SES TEC1A series, commonly used for gated communities, apartment complexes, condominiums, office buildings, parking garages, and other perimeter access locations. The 2-line LCD display is intended to remain readable in sunlight or low-light conditions, and the Basic configuration includes clock/calendar functionality.
The T1A2L500BSK is a good fit when the site needs a 2-line TEC1A telephone entry panel with higher directory capacity than smaller 50, 125, or 250-capacity models, but does not need the additional feature package of the Deluxe or Premium versions. It includes two standard Form C dry-contact relays for controlling access points, plus board-level surge protection built into the SES design.
Compatible With
The SES T1A2L500BSK is commonly associated with the following TEC1A system configuration and applications:
- SES TEC1A Series telephone entry systems
- T1A2L 2-line LCD display TEC1A models
- TEC1A Basic model configuration
- 500 phone capacity / 2000 card capacity TEC1A installations
- Gate entry systems requiring telephone entry and relay output control
- Door access systems using compatible dry-contact relay control
- Apartment, condominium, gated community, office building, and parking access applications
- Installations requiring surface, semi-flush, or pedestal mounting when matched with the correct mounting hardware and accessories
Not Intended For
- Sites that require the 4-line TEC1A display version unless the part number is changed to the correct T1A4L model.
- Sites that require the Deluxe feature package unless the correct DLX model is ordered.
- Sites that require the Premium feature package with NIC and 2-reader board unless the correct PRM model is ordered.
- Installations needing a different user capacity, such as 50, 125, 250, or 1000 phone capacity TEC1A models.
- 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. T1A2L500BSK identifies a TEC1A, 2-line LCD, 500-capacity, Basic model.
- Do not confuse this model with T1A2L500DLX, T1A2L500PRM, T1A4L500BSK, or other similar TEC1A part numbers.
- Verify whether the site needs Basic, Deluxe, or Premium features. Basic models include clock/calendar, while Deluxe and Premium models include additional communication and access-control options.
- 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 and wiring before installation. Electrical work, telephone line wiring, relay wiring, and access-control integration should be handled by a qualified technician when the site wiring is uncertain.
Features & Specifications
| Manufacturer | Select Engineered Systems / SES |
| Product Type | Telephone Entry / Access Control System |
| Part Number | T1A2L500BSK |
| Series | TEC1A Series |
| Model Configuration | Basic, 2-Line LCD Display |
| Phone Capacity | 500 phone capacity |
| Card Capacity | 2000 card capacity |
| Display | 2-line LCD directory display |
| Standard Relays | Two Form C dry-contact door control relays, rated 24V @ 2A |
| Power | +12VDC or 16.5VAC 20VA transformer supplied |
| 12VDC Current Draw | 55mA for T1A2L Basic model |
| Programming | Programmable through keypad; software programming may depend on model options and selected boards |
| 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, mounting, wiring, options, and site requirements before ordering. |
Also Known As / Related Part Numbers
- SES T1A2L500BSK
- Select Engineered Systems T1A2L500BSK
- TEC1A 2 Line Display HF500 Basic
- TEC1A 2-Line LCD HF500 Basic
- TEC1A 2 Line Display HF500 Basic Includes Clock
- T1A2L500 BSK
- T1A2L500BSK Basic
- T1A2L500DLX - related Deluxe 2-line 500-capacity model, not the same configuration
- T1A2L500PRM - related Premium 2-line 500-capacity model, not the same configuration
- T1A4L500BSK - related 4-line 500-capacity Basic model, not the same display style
- T1A2L50BSK, T1A2L125BSK, T1A2L250BSK, T1A2L1000BSK - related TEC1A Basic 2-line capacity models
Common Related Options and Accessories
Depending on the site layout and required features, this TEC1A 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 option where multiple units must share a single phone line
- Communication board options where modem, serial, MUI, or NIC features are required
- 2-reader board option for select card reader applications
- SELCOM software options where supported by the selected configuration
Technician Note
The part number matters on SES TEC1A systems. T1A2L500BSK is not just a generic 500-capacity telephone entry unit; it identifies the TEC1A series, 2-line LCD display, 500 phone capacity, and Basic feature package. Similar TEC1A part numbers may look close but can have different display sizes, capacities, communication boards, reader support, or included feature sets.
Before replacing an older SES telephone entry system, compare the existing model number, wiring, mounting, relay usage, power supply, phone line setup, and optional boards. If the site has card readers, network programming, modem programming, or multiple-unit phone line sharing, verify whether the Basic model is the correct choice or whether a Deluxe, Premium, or option-board configuration is required.
Before Ordering, Confirm
- The existing or required part number is T1A2L500BSK.
- The site needs a TEC1A 2-line LCD display, not a 4-line display.
- The required capacity is 500 phone entries and 2000 card capacity.
- The Basic model feature set is correct for the installation.
- The site does not require Deluxe or Premium communication features.
- 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 relay outputs match the gate operator, door strike, magnetic lock, or access-control interface being controlled.
- Any card reader, software, modem, network, or multi-unit interface requirements have been verified.
- The entry system is being used with proper gate safety devices where required by the automatic gate installation.
Professional Advisory
Telephone entry systems connect to access-control wiring, relay circuits, power, and often telephone or communication lines. Improper wiring can damage the entry system, gate operator, lock hardware, or related access-control equipment. If the existing wiring, voltage, relay circuit, phone line, reader 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 T1A2L500BSK a 2-line or 4-line display model?
The T1A2L500BSK is a TEC1A 2-line LCD display model. If the installation requires a 4-line display, confirm the correct T1A4L model before ordering.
What capacity does the T1A2L500BSK support?
This model is listed as a 500 phone capacity TEC1A system with 2000 card capacity. Confirm the sites directory size and card access requirements before ordering.
Is this the Basic, Deluxe, or Premium version?
The T1A2L500BSK is the Basic version. The Basic model includes clock/calendar functionality. Deluxe and Premium models have additional feature packages and are not the same part number.
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.
Does this include the mounting pedestal or weather hood?
Pedestals, weather hoods, semi-flush rings, sleeves, adapters, and mounting plates may be separate accessories depending on how the product is sold. Confirm the included items before ordering.
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.
