Wireless devices have found its wider applications across variety of very high tech products (Keyboard, Scanners, Laptops, and Printers etc.) to very low-end products including electronic toys. Many products operated on electrical power, can be operated through the wireless devices namely Wi-Fi routers/modems, wireless mouse, wireless keyboard, wireless headphones, wireless smart watches, Wi-Fi USB pen-drives, wireless speakers etc primarily for Convenience and Safety of human beings. Now a day, even Pedestal/Ceiling fans can also be operated through the wireless control instead of manual control. Hence, Safety is also a matter of concern since it radiates certain amount of power. To address this issue, BTHPL has also added to its WPC test facility to examine wireless devices operations, performance and safety. The EMC/EMI test facility would also cover tests on various low power wireless devices are being widely used in the IT & Electronic products for satisfactory remote operations as per IS/IEC/EN/WPC/TEC requirements.
The current test facility is equipped with the testing of Low power operating Wireless & Bluetooth devices as per WPC(Wireless Planning & Coordination), of Ministry of Communication & Information Technology requirements for all wireless, Wi-Fi, Bluetooth devices covering Wi-Fi routers/modems, wireless mouse, wireless keyboard, wireless headphones, wireless smart watches, Wi-Fi USBs, pen-drives, wireless speakers, etc. The Lab can provide test facility to the domestic & overseas manufacturers who plans to sell their products in India. WPC Approval and WPC ETA Approval is mandatory for the low power fixed frequency wireless operated devices.
Following Test parameters have been accredited under Wireless Devices:
- Peak radiated power
- Peak power spectral density
- 6dB and 20dB BW
- Frequency ranges and details of channels
- Behaviour of edge channels
- Spurious/harmonic emissions (Conducted & Radiated)
BTHPL facility is accredited for Testing of Telecom Devices, Equipment & Accessories under IS 13252 under IT & Electronics Equipment by considering the requirements of TEC (Telecom Engineering Centre) under Ministry of Telecom. Accordingly, the test facility has been enhanced to meet the GR & IR requirements as per TEC test specifications that mainly cover Electronics Safety and EMI/EMC Compliance for Telecom products/Accessories.
BTHPL test facility is to examine Telecom Devices’ Operation, Performance & Safety. Telecom facility is equipped with Combined Telecom Equipment Tester (Herman Laboratory Tele-conformance Analyzer). The facility also includes EMC Compliance required for TEC including CISPR 11 and CISPR 22, CISPR 32, ITU Standard Testing and CE Marking facility for all the Telecom Equipment.
As per latest Gazette notification by DOT, there is a “Proposal to implement mandatory Testing and Certification of Telecom Equipment, prior to sale/import/use in the country, is under consideration in Department of Telecommunications”. The Essential Requirements (ER) to be complied for the purpose of certification under this procedure would be:
- General Requirements: a) EMI/EMC b) Safety
- Security Requirements
- Technical Requirements
- Other Requirements: SAR, ROHS, IPv6 etc.
Bharat Test House (P) Ltd (BTHPL) has been recently designated as Conformity Assessment Body (CAB) for Safety Testing of Telecom Equipment, by Telecom Engineering Center (TEC), Department of Telecommunication, Govt. of India.
Following Test parameters are NABL accredited for Telecom Equipment:
- Leakage Current
- Signal Power Limitations
- Longitudinal Balance
- On Hook Impedance
- Pulse Shape
- Line Rate accuracy
- B8DZ Coding
- Pulse Shape
- Power Level
- Maximum peak to peak jitter at output port
- Jitter tolerance
- Bit rate accuracy(75 & 120 ohm)
- HDB3 Coding (120 ohm)
- Pulse Shape (75 & 120 ohm)
- Maximum peak to peak jitter at output port (120 ohm)
- Maximum peak to peak jitter at output port (75 ohm)
- Return Loss at output port (75 &120 ohm)
- Receiver Sensitivity (75 & 120 ohm)
- Jitter Tolerance (120 ohm)
- Jitter Tolerance (75 ohm)
- Return Loss at input port ( 75 &120 ohm)
- Immunity against signal reflections (75 & 120 ohm)
- Longitude Balance (75 & 120 ohm)
- Transverse Balance (75 & 120 ohm)
- Pulse Code Modulation