ORIENTEK T15M
Orientek T15M Optical Light Source User Manual
Model: T15M (TLS-25M-RL)
1. Okwu mmalite
The Orientek T15M Optical Light Source is a compact and reliable instrument designed for testing singlemode fiber optic networks. It provides stable light output at 1310nm and 1550nm wavelengths, essential for accurate fiber loss measurements when paired with an optical power meter. This manual provides detailed instructions for the proper setup, operation, and maintenance of your T15M device.
2. Ozi nchekwa
Please read and understand all safety instructions before operating the device. Failure to follow these instructions may result in injury or damage to the equipment.
- Mgbasa ọkụ laser: This device emits invisible laser radiation. Avoid direct exposure to the laser beam. Do not look directly into the optical output port.
- Nchekwa batrị: Use only specified battery types (2 AAA 1.5V batteries). Do not mix old and new batteries, or different types of batteries. Dispose of batteries according to local regulations.
- Ọnọdụ gburugburu: Do not operate the device in explosive atmospheres or near flammable materials. Avoid exposure to extreme temperatures, humidity, or dust.
- Nhicha: Only clean the optical connector with approved fiber optic cleaning tools and solutions. Refer to the Maintenance section for details.
3. Ihe ngwugwu
Chọpụta na ihe niile dị mgbe ị na-ebupụ:
- Orientek T15M Optical Light Source Unit
- Silicone Nchedo Ikpe
- Akwụkwọ ntuziaka (akwụkwọ a)
4. Ngwaahịa gafereview
The T15M Optical Light Source features an ergonomic design for comfortable one-handed operation. It is equipped with a removable silicone protective case that provides shock-proof and drop-proof capabilities, enhancing durability. The device also includes an LED lighting function for improved visibility in low-light conditions.

Foto 4.1: Orientek T15M Optical Light Source with its protective silicone case.

Foto 4.2: Ergonomic design and dimensions of the T15M device.

Foto 4.3: The T15M features integrated LED lighting for dark environments.
5. Nhazi
5.1. Ntinye batrị
- Chọta ebe batrị dị n'azụ ngwaọrụ ahụ.
- Mepee mkpuchi batrị.
- Fanye batrị abụọ (2) AAA 1.5V, na-eme ka polarity ziri ezi (+/-).
- Mechie mkpuchi batrị nke ọma.
5.2. Attaching the Protective Case
The silicone protective case is designed to fit snugly around the T15M unit. Carefully slide the device into the case, ensuring all buttons and ports are accessible and aligned.

Foto 5.1: The removable silicone protective case provides enhanced durability.
5.3. Ijikọ Fiber Optic Cables
The T15M features a 2.5mm universal interface for connecting various fiber optic connectors. Ensure the fiber end-face is clean before connection.

Foto 5.2: The 2.5mm universal interface supports SC, ST, FC, and optional LC connectors.
6. Ntuziaka ọrụ
6.1. Gbanyụọ / gbanyụọ
- Iji gbanye ngwaọrụ ahụ, pịa ma jide ya Ike bọtịnụ (
) for approximately 2 seconds. - Iji gbanyụọ, pịa ma jide Ike bọtịnụ ọzọ ruo mgbe ngosi gbanyụọ.
6.2. Wavelength Selection
The T15M supports 1310nm and 1550nm wavelengths for singlemode fiber testing.
- Pịa Lambda (λ) bọtịnụ (
) to cycle between 1310nm and 1550nm. The selected wavelength will be displayed on the screen.

Foto 6.1: Wavelength selection for singlemode fiber testing.
6.3. Modulation Carrier Output
The T15M can output a continuous wave (CW) or modulated signals at specific frequencies.
- Pịa CW/Hz bọtịnụ (
) to cycle through the modulation frequencies: Continuous Wave (CW), 270Hz, 1KHz, and 2KHz. The selected modulation frequency will be displayed.
6.4. Ọkụ ọkụ ọkụ
- Pịa Ìhè bọtịnụ (
) to turn the integrated LED light on or off.
6.5. Ọrụ gbanyụọ akpaaka
The device features an auto-off function to conserve battery life. If no operation is performed for a set period, the device will automatically power off. This status is indicated by "Auto-off" on the display.

Foto 6.2: The T15M Light Source in operation, typically used with an Optical Power Meter.
7. Nlekọta
7.1. Cleaning the Optical Connector
A clean optical connector is crucial for accurate measurements and to prevent damage to the fiber. Always clean the connector before use.
- Use a high-quality, lint-free fiber optic cleaning wipe or a specialized fiber optic cleaning stick.
- Apply a small amount of isopropyl alcohol (99% pure) to the cleaning material.
- Gently clean the end-face of the optical connector.
- Allow the connector to dry completely before re-connecting any fiber.
- Always keep the dust cap on the optical port when not in use.
7.2. Device Care
- Keep the device dry. If it gets wet, wipe it immediately with a soft, dry cloth.
- Avoid dropping the device or subjecting it to strong impacts, even with the protective case.
- Debe ngwaọrụ ahụ n'ebe dị ọcha ma kpọọ nkụ mgbe a naghị eji ya.
- Wepu batrị ma ọ bụrụ na agaghị eji ngwaọrụ ahụ ogologo oge iji gbochie ntapu.
8. Nchọpụta nsogbu
| Nsogbu | Ihe nwere ike ime | Ngwọta |
|---|---|---|
| Ngwaọrụ anaghị agbanwu ọkụ | Batrị dị ala ma ọ bụ nwụrụ anwụ; Ntinye batrị ezighi ezi | Replace batteries with new AAA 1.5V batteries; Check battery polarity. |
| Enweghị mmepụta ọkụ | Device not powered on; Incorrect wavelength selected; Damaged optical port | Ensure device is on; Verify correct wavelength (1310nm/1550nm) is selected; Inspect optical port for damage or contamination. |
| Unstable or incorrect readings (when used with OPM) | Dirty optical connector; Damaged fiber cable; Mismatched wavelength with OPM | Clean optical connector on both OLS and fiber; Replace fiber cable if damaged; Ensure OLS and OPM are set to the same wavelength. |
| Auto-off activates too quickly | Standard feature to save battery | This is normal operation. To prevent auto-off during extended use, periodically press a button. |
9. Nkọwapụta
Technical specifications for the Orientek T15M Optical Light Source:

Foto 9.1: Detailed specifications for the T15M Light Source.
| Oke | Uru |
|---|---|
| Ogologo ogologo (nm) | 1310/1550 |
| Typical Output Power | -5dBm |
| Njikọ ngwa anya | 2.5mm universal (SC/FC/ST; LC optional, purchased separately) |
| Ịnye ọkụ | Batrị Alkaline (batrị 2 AAA 1.5V) |
| Mpụta kwụsie ike | ±0.05dB/15mins; ±0.1dB/8hours |
| Modulation Frequencies | CW, 270Hz, 1KHz, 2KHz |
| Akụkụ (mm) | 130 x 65 x 35 |
| Ibu | 180g |
| Okpomọkụ na-arụ ọrụ | -10 to +60(℃) |
| Okpomọkụ nchekwa | -25 to +70(℃) |
10. Akwụkwọ ikike Ozi
Orientek products are typically covered by a limited warranty against defects in materials and workmanship. Please refer to the warranty card included with your product or contact Orientek customer support for specific warranty terms and conditions applicable to your region and purchase date.
11. Nkwado ndị ahịa
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact Orientek customer support. Contact information can typically be found on the official Orientek websaịtị ma ọ bụ na nkwakọ ngwaahịa.
Websaịtị: www.orientek.com (Please verify the official website for the most current contact details.)