Основнят видео сигнал използва честоти до няколко мегахерца. А балун може да се използва за свързване на видео сигнали към усукана двойка кабели, вместо използване на коаксиален кабел. Много камери за сигурност вече имат балансиран неекранирана усукана двойка (UTP) изход и небалансиран коаксиален един чрез вътрешен балун. A балун се използва също така в края на видео рекордера, за да превърне обратно видео сигнала от 100 Ω балансиран до 75 Ω небалансиран.
| ITEM / MODEL |  |
 |
 |
 |
 |
| PTT-120V | PTT-130V | PTT-400V | PTT-1600V | PTT-130VS | |
| Video Port | 1 | 1 | 4 | 16 | 1 |
| Connector | BNC & Terminal block | BNC & Terminal block | BNC & RJ45 | BNC & RJ45 | BNC & Terminal block |
| Communication Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Video Noise Filter | No | Yes | Yes | Yes | Yes |
| Cross Talk Immunity | No | Yes | Yes | Yes | Yes |
| RF Noise Immunity | No | Yes | Yes | Yes | Yes |
| Wire Cable | UTP Category 2 or better cable UTP 24-16 AWG (0.5-1.31mm) | UTP Category 2 or better cable UTP 24-16 AWG (0.5-1.31mm) | UTP Category 2 or better cable UTP 24-16 AWG (0.5-1.31mm) | UTP Category 2 or better cable UTP 24-16 AWG (0.5-1.31mm) | UTP Category 2 or better cable UTP 24-16 AWG (0.5-1.31mm) |
| Impedance | BNC: 75Ω; Terminal Block: 100 Ω | BNC: 75Ω; Terminal Block: 100 Ω | BNC: 75Ω; Terminal Block: 100 Ω | BNC: 75Ω; Terminal Block: 100 Ω | BNC: 75Ω; Terminal Block: 100 Ω |
| Frequency response | DC to 5 MHz | DC to 5 MHz | DC to 5 MHz | DC to 5 MHz | DC to 5 MHz |
| Insertion Loss (Video) | Less than 2 dB /pair over the frequency from DC to 5 MHz | Less than 2 dB /pair over the frequency from DC to 5 MHz | Less than 2 dB /pair over the frequency from DC to 5 MHz | Less than 2 dB /pair over the frequency from DC to 5 MHz | Less than 2 dB /pair over the frequency from DC to 5 MHz |
| Return Loss (Video) |
Greater than 15 dB over the frequency from DC to 5 MHz | Greater than 15 dB over the frequency from DC to 5 MHz | Greater than 15 dB over the frequency from DC to 5 MHz | Greater than 15 dB over the frequency from DC to 5 MHz | Greater than 15 dB over the frequency from DC to 5 MHz |
| Common/ Differential Mode Rejection Ratio |
40dB@5MHz | 60 dB @15 KHz to 5 MHz |
60 dB @15 KHz to 5 MHz |
60 dB @15 KHz to 5 MHz |
60 dB @15 KHz to 5 MHz |
| Max Surge Peak Voltage | No | No | No | No | 6KV |
| Max Surge Peak Current | No | No | No | No | 150 A |
| Surge Protection Time | No | No | No | No | 10US |
| Normal Resistance | No | No | No | No | 1000M Ohm |
| Cross Coax | No | No | No | No | 1000M Ohm |
| Surge Resistance | No | No | No | No | 0 Ohm |
| Low Pass Filter | No | No | No | No | 1000M Ohm |
| Insertion loss (Surge) | No | No | No | No | 3.58M Less than 0.2dB |
| Return loss (Surge) |
No | No | No | No | 3.58M Less than 0.2dB |
| Environmental | -20℃ 〜 70℃, Humidity: 0 to 95% (non-condensing) | -20℃ 〜 70℃, Humidity: 0 to 95% (non-condensing) | -20℃ 〜 70℃, Humidity: 0 to 95% (non-condensing) | -20℃ 〜 70℃, Humidity: 0 to 95% (non-condensing) | -20℃ 〜 70℃, Humidity: 0 to 95% (non-condensing) |
| Dimension(mm) | 45x13x12 | 66x13x12 | 60x97x35 | 65x482x44 | 66x13x12 |
| Weight | 20g | 30g | 200g | 1.5kg | 35g |
| Accessories | |||||
| Power Distributing Box | UY Connector | ||||