E1 interface
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E1: 8 E1 channel
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According to ITU-T G.703
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Line code: HDB3
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Velocity: 2.048Mbit/s ± 50ppm
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Impedance: 75Ω unbalanced or 120Ω balanced optional
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Jitter index: comply with ITU-TG.823 standard
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Connector: BNC or RJ45 optional. DB37 with device and able to be with 8 RJ45(120Ω) or 16 BNC(75Ω) by 2pcs adaptor
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Ethernet interface
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4 Ethernet with VLAN
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Connector: RJ-45
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VLAN control by DIP SEL4 switch
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According to IEEE 802.3 Recommendation
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Comply with IEEE802.1Q
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Auto adapt 10/100M, full/half duplex
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Auto support flow control(back press control in half duplex and pause flow control in full duplex)
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MAC address table capability: 1024
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MAC address table aging time: 5 minutes
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Minimum frame length: 64 bytes
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Maximum frame length: 1916 bytes
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Indicator light
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POWER1 and POWER2: power indicator light for AC and DC
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LINK1~4: for 1~4 Ethernet connection status
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ALR: general alarm. Indicates there is alarm.
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L1~L8: indicates 1~8 E1 alarm.
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DIP SEL1,2=OFF, OFF. L1~L8 indicates LOS
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DIP SEL1,2=ON, ON. L1~L8 indicates AIS
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DIP SEL1,2=ON, OFF. L1~L8 indicates LOOP
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DIP SEL1,2=OFF,ON. L1~L8 indicates LOF
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Management
(please state in order)
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RS232 interface for hyper terminal network management
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SNMP network management optional
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Default with RS232 hyper terminal NMS
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Power supply
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AC and DC dual powerwith redundancy
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Power consumption: less than 10W
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Environment
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Operating temperature: -5℃~50℃
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Relative humidity: 0%~95%, non-condensing
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