16E1+4GE+SNMP PDH Multiplexer

 This device has the console control ，provides the 1+1fiber path protection ,point to point optical transmission, LCD display , on the basic of our company development of the PDH optical transmission, use the special VLSI and the SNMP NMS.

      The device provides 1-16Channel E1 interface, 1-4Channel 10M/100/1000M Ethernet interface (Line Rate 1000M) and 2 expansion interface. 4Channel Ethernet interface is switch interface, can support VLAN. 2 expansion interface can be used as the transmission channel of RS232/RS485/RS422 asynchronous data, voice signal, 2/4 line E&M audio signal, switch signal, Ethernet signal (Bandwidth 2M). It is very flexible. It has alarm function. The work is reliable, stable, and low power consumption, high integration, small size

Features

Ø Provides 16 E1 transparent transmission;

Ø With char 16*2 LCD display and SNMP agent inside

Ø Provide Console manage interface (RS232)

Ø Provide two fiber interface 1+1 protect（APS）function ,and ALS（Automatic Laser Shutdown/Reduction）function

Ø Provide 4X1000M line Ethernet channel support mutual negatiate, Ethernet bandwidth is set on base on multiple of 32K

Ø Provide one hotline channel for option,

Ø Provide two fiber interfaces, one as master, the other as slave, insuring uninterrupted service transmission

Ø The rate of optical port is 1.25Gbps, transmission range can reach 25KM, 40KM, 60KM, 80KM or 100KM;

Ø E1 interface code is HDB3，E1 vibration characteristic conforms to ITU-T G.703、G.823 and G.742;

Ø Ethernet port supports full/half duplex, 10M/100/1000M auto-ataptable；

Ø Ethernet port supports VLAN function and has 4devision mode for user selection;

Ø Ethernet package size support 1916 byte and 4 GE Ethernet port could be set seperately；

Ø Has complete alarm function and can monitor remote device status;

Ø Supports E1 loop from remote so as to detect and manage device conveniently;

Ø The combination AC220V and DC-48V for redundant