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Description
Hollyland 2/4 Wire Converter for Intercom SystemsInterconnect your 2 and 4 wire intercom systems with this 2 4 Wire Converter from Hollyland. The converter features 3 pin XLR inputs for 2 wire or 4 wire intercom systems such as ALTAIR, ClearCom, Hanson, Syscom, and Datavideo, and it is powered using the intercom system over a 12 to 36V 2 wire connector. Other features include voltage and static protection, electrostatic discharge (ESD) testing to avoid damage, and distance compensation switches that
Interconnect your 2- and 4-wire intercom systems with this 2/4 Wire Converter from Hollyland. The converter features 3-pin XLR inputs for 2-wire or 4-wire intercom systems such as ALTAIR, ClearCom, Hanson, Syscom, and Datavideo, and it is powered using the intercom system over a 12 to 36V 2-wire connector. Other features include voltage and static protection, electrostatic discharge (ESD) testing to avoid damage, and distance compensation switches that support cable lengths up to 656'. The unit measures 1/4 RU and can be daisy-chained with up to three other units to create an environment for four sets of intercom connections with a 1 RU form factor.
One Button for Echo Processing
One button designed for echo processing with the Digital Signal Processing (DSP) technology for echo elimination, easy and convenient
4W Audio Gain Adjustment
Ultrahigh ±6 adjustment range to effectively adjust the volume of both the wired and wireless system
High-Definition Sound Quality
Interconnect with several wired and wireless intercom systems while retaining high-definition sound quality
4-Set Combination for 1 RU Standard Setup
Supports standard 1/4 RU structure accessory for 4 sets of 2/4 wire connections for flexible daisy-chain and broader communication coverage
2-Wire Connection for Direct Power Supply
Direct power supply from a 12 to 36V 2-wire connection with the wired system, no additional power supply needed
Terminating Resistor Switch
The 220-ohm terminating resistor switch supports effective interconnection between SYSCOM 1000T and different models of Datavideo wired intercom systems
Distance Compensation Switches
Two distance compensation switches for easy distance setup to meet up to 656' cable length between the wired system and the converter
Voltage and Static Protection
The voltage-protection design effectively prevent damage to the equipment by overvoltage input, while an electrostatic discharge (ESD) ±6000V test avoids ESD damage in dry or humid environments
Compatibility
The 2-wire interface is compatible with ALTAIR, Hanson, ClearCom, RTS, Datavideo, and other types of wired intercom systems
Hollyland HL-2/4 WIRE CONVERTER Specs
| Connectors | 1 x 3-Pin XLR 2-Wire, Female 1 x 3-Pin XLR 2-Wire, Male 1 x 3-Pin XLR 4-Wire, Female 1 x 3-Pin XLR 4-Wire, Male 1 x USB Type-C |
| Input Level / Input Impedance | 2-Wire: Maximum Uncompressed Level: >6 dBu Input Impedance: >10 Kilohms 2-Wire to 4-Wire Output Gain: 12 dB 4-Wire: Maximum Uncompressed Level: >18 dBu Input Impedance: >10 Kilohms 2-Wire to 4-Wire Output Gain: 12 dB |
| Output Level / Output Impedance | 2-Wire: Noise: >-68 dBu Matching Impedance: 104 to 240 Kilohms Frequency Response: 100 Hz to 5 kHz Distortion: >1% at 1 KHz SNR: >55 dB at -12 dBu 4-Wire: Noise: >-60 dBu Output Impedance: 400 Ohms Frequency Response: 100 Hz to 5 kHz Distortion: >1% at 1 kHz SNR: >55 dB at 0 dBu |
| Power Input | 12 to 36 VDC |
| Power Consumption | <1.5 W |
| Dimensions | 4.7 x 4.3 x 1.7" / 12 x 10.9 x 4.3 cm |
| Weight | 18.3 oz / 520 g |
Packaging Info
| Package Weight | 1.6 lb |
| Box Dimensions (LxWxH) | 7.3 x 6.2 x 3.1" |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 913 reviews
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Product Reviews
★★★★★ 5
Good quality. 3 month review
My dog likes them more than the more expensive versions we have. Still in one piece and they get beat on, tugged with me and a dog or by 2 dogs both about 70lbs
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Reviewed in the United States on April 1, 2026
★★★★★ 3
Dog doesn’t like how it slams into his face from the weight
The balls were heavier than I expected and my dog does not like to engage with it even when I drag and throw them around to play with. To heavy duty for cattle dog
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Reviewed in the United States on October 5, 2025
★★★★★ 5
Great Training tool!
These things are great! I have a power chewing 8 month old Doberman who DESTROYS toys and he LOVES these balls. I use them on walks as a training reward and it has been a game changer. He loves these more than treats. Its not something I would leave for him to chew on his own in the house, but that's not what they're meant for. You use the rope to dangle and animate the ball so you become the most interesting thing on the walk. Then a clear drop command and you're back at whatever task you were working on. It's great to train recall, leave it, and reward for any good behavior. Highly recommend as a training tool, just remember to tighten the rope before you use it. Do not leave these things lying around your house and think you'll have a great result if you have a power chewer. Use as intended and you will be a happy camper!
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Reviewed in the United States on April 24, 2021
★★★★★ 1
Didn’t last 2 minutes
Not actually made of corded rope. Instead made with the most fragile materials this misleading, fraudulent company could find. Any potential buyers beware of this long string of tissue paper. I have been duped!!! Duped!!!
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Reviewed in the United States on March 3, 2023
★★★★★ 5
My dog love this toy! its just perfect!
My dog love this toy! its just perfect!
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Reviewed in the United States on April 16, 2026