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	4E1 PCM30 multiplexer is our famous product, which is also reliable transmission equipment. Intelligent 1U4E1PCM30 has 4 E1 ports, 30 channels. All of the 128*128 time slots can be cross-connected flexibly. All the channel cards are hot-swappable after turn down the panel. The operation information and alarm that indicated by the LED are available on the front panel. The equipment can connect with any other PCM, which is made by other manufactures or connect with the Program-controlled switchboards directly. For this product, the cable connector is DB25, E1 port is L9, the power supply can be only DC-48V otherwise a power converter will be needed. The 4E1 cross-connected multiplexer includes 2V.35 (N×64K) channels and 2 V.24 (N×64K) channels. If necessary it can be upgraded to 4 channels. Furthermore, the 1U4E1PCM30 is not only one PCM. In fact, it can be constituted by various PCM, such as 1 PCM30 and 2 E1-V.35 interface converters and 1 E1-RS232 interface converter.

4E1 PCM30 multiplexer is our famous product, which is also reliable transmission equipment.

Intelligent 1U4E1PCM30 has 4 E1 ports, 30 channels. All of the 128*128 time slots can be cross-connected flexibly.
All the channel cards are hot-swappable after turn down the panel.
The operation information and alarm that indicated by the LED are available on the front panel.
The equipment can connect with any other PCM, which is made by other manufactures or connect with the Program-controlled switchboards directly.
For this product, the cable connector is DB25, E1 port is L9, the power supply can be only DC-48V otherwise a power converter will be needed.
The 4E1 cross-connected multiplexer includes 2V.35 (N×64K) channels and 2 V.24 (N×64K) channels. If necessary it can be upgraded to 4 channels. Furthermore, the 1U4E1PCM30 is not only one PCM. In fact, it can be constituted by various PCM, such as 1 PCM30 and 2 E1-V.35 interface converters and 1 E1-RS232 interface converter.