Transmitter Solutions TRAEMP310LID21V-C Emperor 310 MHz ChargeGuard Transmitter Compatibility Details
The Transmitter Solutions TRAEMP310LID21V-C catalog SKU corresponds to manufacturer part EMP310LID21V-C, the Emperor 310LID21V-C with ChargeGuard. This is a 310 MHz, 1-button visor-style transmitter specifically identified by Transmitter Solutions as compatible with the Linear DT.
Current manufacturer product information lists an 8-DIP switch code system, a 9V battery, black housing, and ChargeGuard LED. The official Emperor transmitter manual also visually shows an 8-position code switch and specifies 256 code combinations.
Important 8-DIP and 10-DIP Documentation Conflict
The supplied catalog title identifies TRAEMP310LID21V-C as a 10-DIP switch transmitter. The current Transmitter Solutions product page for EMP310LID21V-C instead lists 8 DIP switches.
The official Emperor 310 transmitter manual also shows eight code switch positions and specifies 256 code combinations, which is consistent with an 8-switch binary code system. However, the linked ChargeGuard cut sheet states 10 DIP switches while also listing 256 combinations.
Because the manufacturer's current product page and manual support 8-DIP coding, this product should not be marketed as a confirmed 10-DIP transmitter without checking the physical remote. Confirm the DIP switch count inside the transmitter before replacing an existing remote.
Verified Linear DT Compatibility
Transmitter Solutions specifically identifies EMP310LID21V-C as compatible with the Linear DT transmitter system. The transmitter operates at 310 MHz and uses a manually matched DIP switch code.
For replacement use, open the battery and code-switch compartment and compare the new transmitter code pattern with a known working compatible remote. The official manual instructs the user to match the code switches to another functioning transmitter.
Do not select this transmitter only because an existing remote operates at 310 MHz. Frequency, DIP switch format, and receiver coding system must match.
One-Button Visor Transmitter
The EMP310LID21V-C is a one-button visor-style transmitter. The single push button sends the programmed fixed-code radio command to the compatible receiver.
This model is intended for applications requiring one transmitter command. It should not be substituted for a 2-button transmitter when two independent receiver channels or gate functions are required.
ChargeGuard Battery Status LED
The -C suffix identifies the ChargeGuard version. The current manufacturer cut sheet describes ChargeGuard as a battery-status LED indicator.
ChargeGuard does not change the transmitter frequency, DIP switch code, button count, or receiver compatibility. It provides battery-status indication on the ChargeGuard transmitter version.
If transmitter range becomes noticeably shorter or the transmitter LED does not operate normally, inspect and replace the battery before assuming the receiver or transmitter electronics have failed.
9V Replaceable Battery
The manufacturer specifies one 9V battery for the Emperor transmitter. The official manual states an approximate battery shelf life of one year and provides access through the lower front cover.
Battery life in actual service can vary with use, battery condition, storage temperature, and transmitter operation. Match battery polarity when installing a replacement battery.
Fixed-Code DIP Switch Programming
This transmitter uses manually set DIP switches rather than receiver learn-button enrollment as its primary code-setting method. The official manual instructs the user to set the toggle code switches to match the code from another functioning compatible transmitter.
The manual identifies the normal default arrangement as switches 1, 4, and 7 in the ON position, but an existing access system may use a different code. Do not reset a working site's DIP pattern to the manual default unless the receiver system is actually configured for that code.
Record or photograph the existing working transmitter code before changing switch positions.
Current Manufacturer Compatibility Is Linear DT
The current EMP310LID21V-C product page specifically lists Linear DT compatibility. This is the strongest current manufacturer compatibility statement for the exact ChargeGuard model.
An older linked ChargeGuard cut sheet broadly states compatibility with 310 MHz DIP switch receivers and references MultiCode digital receivers. That broad statement conflicts with the current product page's exact Linear DT listing and with the current 8-DIP specification.
For that reason, Linear DT is the positively verified compatibility for this product page. Exact compatibility with another 310 MHz receiver should be confirmed by receiver model, DIP switch count, and coding format before ordering.
Similar 310 MHz Transmitters Are Not Automatically Interchangeable
- EMP310LID21V: Related Emperor 310 MHz 1-button transmitter without ChargeGuard. It is the manufacturer-listed non-ChargeGuard version.
- 310LID21V2: Related Stinger2 310 MHz Linear-compatible transmitter. Different transmitter housing and model family.
- 310LID22V2: 2-button Stinger2 transmitter. Do not substitute when the application specifically requires the Emperor 1-button visor model.
- 310MCD21V2: Separate 310 MHz transmitter associated with a different DIP switch transmitter family. Matching 310 MHz frequency does not prove interchangeability.
- 318 MHz Linear MegaCode transmitters: MegaCode uses a different frequency and radio protocol and is not compatible based on the Linear brand name alone.
Features and Specifications
| Feature | Specification |
| Brand | Transmitter Solutions |
| Catalog SKU | TRAEMP310LID21V-C |
| Manufacturer Part Number | EMP310LID21V-C |
| Product Family | Emperor |
| Product Type | Visor-style fixed-code transmitter |
| Operating Frequency | 310 MHz |
| Number of Buttons | 1 |
| Verified Compatibility | Linear DT |
| Current Product Page DIP Switch Count | 8 DIP switches |
| Official Manual Code Switch Layout | 8 switch positions shown |
| Linked ChargeGuard Cut Sheet DIP Count | 10 DIP switches; conflicts with current product page and manual |
| Number of Code Combinations | 256 per manufacturer manual and cut sheet |
| Coding Method | Manual DIP switch code matching |
| ChargeGuard | Battery-status LED indicator |
| Battery | 1 x 9V battery |
| Housing Color | Black per current product page; ChargeGuard cut sheet describes button as grey |
| Mounting Style | Visor model with rear clip slot shown in manufacturer manual |
| Operating Temperature | -20 to 100 degrees F |
| Dimensions | Approximately 2-3/8 x 3-1/2 x 3/4 inches |
| Weight | Approximately 3 oz |
| Published Warranty | 2 years in manufacturer manual and cut sheet |
Manufacturer Part Number and Cut Sheet Typo Note
The current manufacturer product page clearly lists part number EMP310LID21V-C. The linked ChargeGuard cut sheet displays model EMP10LID21V-C in one location, which appears inconsistent with the product page, cut sheet filename, and related EMP310LID21V model reference.
Use EMP310LID21V-C as the current manufacturer part number and preserve TRAEMP310LID21V-C as the Gate Openers Unlimited catalog SKU.
Also Known As and Related Product References
- TRAEMP310LID21V-C - supplied Gate Openers Unlimited catalog SKU.
- EMP310LID21V-C - current Transmitter Solutions manufacturer part number.
- Emperor 310LID21V-C with ChargeGuard - current manufacturer product designation.
- EMP310LID21V - related Emperor 310 MHz version without ChargeGuard.
Package Contents
The product is identified as an Emperor visor transmitter with a 9V battery specification. Current manufacturer documentation does not provide a detailed package contents list separately confirming whether the 9V battery or a visor clip is included in every retail package.
Confirm package contents when a battery, visor clip, or other accessory is specifically required.
Technician Note
The DIP switch count is the main issue on this SKU. The current Transmitter Solutions product page says 8 DIP switches, and the official Emperor manual shows eight code switches with 256 combinations. The linked ChargeGuard cut sheet says 10 DIP switches but still says 256 combinations. For an exact Linear DT replacement, open the old remote and count the switches before ordering. Do not force a 10-DIP catalog description onto an 8-DIP receiver system.
Before Ordering Checklist
- Confirm catalog SKU TRAEMP310LID21V-C.
- Verify manufacturer part number EMP310LID21V-C.
- Confirm 310 MHz operation.
- Identify the existing receiver or working transmitter model.
- Verify Linear DT compatibility is required.
- Open the old remote and count the DIP switches.
- Confirm the existing code uses the documented 8-switch format before ordering this exact model.
- Record or photograph the working DIP switch pattern.
- Verify that one transmitter button is sufficient.
- Confirm a visor-style transmitter is required.
- Verify that the ChargeGuard battery-status LED version is wanted.
- Confirm the 9V battery requirement.
- Check package contents when a battery or visor clip is specifically needed.
Installation and Service Notes
Access the code switches by opening the lower front cover as shown in the manufacturer manual. Match the code pattern to a known working compatible transmitter or the receiver system code.
Use a small pointed nonconductive or suitable hand tool carefully when changing the switches. Do not damage the code switch bank or transmitter circuit board.
After matching the code, reinstall the battery with correct polarity and close the transmitter cover. Test operation with the gate or door visible and clear.
If the remote only works at very short range, install a known-good battery and inspect the transmitter before replacing the receiver. Radio interference or receiver antenna problems can also reduce operating range.
Product Questions and Answers
Is TRAEMP310LID21V-C the same transmitter as manufacturer part EMP310LID21V-C?
TRAEMP310LID21V-C is the supplied catalog SKU, while the current Transmitter Solutions product page lists manufacturer part EMP310LID21V-C. The manufacturer identifies it as the Emperor 310LID21V-C with ChargeGuard.
Does EMP310LID21V-C use 8 DIP switches or 10 DIP switches?
The current Transmitter Solutions product page lists 8 DIP switches, and the official Emperor manual shows eight code switch positions with 256 combinations. The linked ChargeGuard cut sheet says 10 DIP switches while also listing 256 combinations. Because the manufacturer documents conflict, confirm the physical transmitter switch count before replacing an existing remote.
Is EMP310LID21V-C compatible with the Linear DT?
Yes. The current Transmitter Solutions product page and linked manufacturer cut sheet specifically identify Linear DT compatibility. Confirm 310 MHz operation and the matching DIP switch code before ordering.
Can I replace a 10-DIP 310 MHz transmitter with EMP310LID21V-C?
Do not assume it will interchange. Current manufacturer product information and the official manual support an 8-DIP configuration for EMP310LID21V-C. Match the receiver system, frequency, DIP switch count, and code format before substituting a similar 310 MHz transmitter.
What does ChargeGuard do on the EMP310LID21V-C transmitter?
The manufacturer cut sheet identifies ChargeGuard as a battery-status LED indicator. ChargeGuard does not change the transmitter frequency, DIP switch code, button count, or receiver compatibility.
What battery does the Emperor EMP310LID21V-C use?
Transmitter Solutions specifies one 9V battery. Match battery polarity during replacement and check the battery when transmitter range drops or the transmitter LED does not operate normally.
Do I need to program EMP310LID21V-C with a receiver learn button?
The manufacturer manual documents manual DIP switch code matching. Set the transmitter code switches to match a known working compatible transmitter or the applicable receiver system code. This is different from individually enrolling a rolling-code remote with a receiver learn button.
What should I check before ordering TRAEMP310LID21V-C?
Confirm the existing remote or receiver model, 310 MHz frequency, Linear DT system, DIP switch count, code format, one-button requirement, and ChargeGuard preference. Because manufacturer documents conflict on 8 versus 10 DIP switches, physically count the switches in the old remote whenever possible.
