This series equipment is an E1 switch developed based on the dedicated VLSI by Fctel. Provides 1-5 channels Independent E1 switch protection function. In the default working mode, when the main E1 line fails, the device will switch to the back up E1 line without damage automatically. When the main E1 line is repaired well, it will switch back to the main E1 line for transmission. Fully automatic work, no manual monitoring or operation. Applied to the protection of teleconference, video conference, video surveillance system.

● Integrated circuits based on independent intellectual property rights;

● Built in relay, when device power off, support transmission on mainE1line;

●When LOS, AIS, LOF and CRC4 alarms occur on the current transmitting E1 line, the system will switch to another E1 line without damage;

● When the E1 line is in the PCM framing mode, it can be switched according to the CRC4 error;

● You can choose to configure the standby E1 line not to send HDB3 code when the main E1 lineworks;

● Avariety of power supply options: AC220V, DC-48V/DC24V, etc;

● DC-48V/DC24V power supply with automatic polarity detection, no need to distinguish positive and negative when installing.

● E1 Interface

Interface Standard: comply with protocol G.703 Interface Rate: 2048Kb/s±50ppm

Interface Code: HDB3

E1 Impedance: Unbalanced 75Ω (Unbalanced with Coaxial Interface Adapter, Adaptable 75-2/3 Coaxial Cable)

Jitter tolerance: In accord with protocol G.742 and G.823

Allowed Attenuation: 0~6dBm

● Environmental Indicators

Operating temperature: -10 ℃ – +60 ℃

Storage temperature: -40 ℃ – +85 ℃

Humidity: 0% -95% (non-condensing)

MTBF:> 100,000 hours