CTC Union ET100/G64, Руководство пользователя

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ET100/G64 LAN-WAN Bridge
7
1.0 Overview
The
ET100/G64
Network Bridge is a high performance, remote, self-learning Ethernet bridge. Its
solid design makes it ideal for cost-sensitive bridging applications, or as a LAN extender or segmenter
over G.703 64K Co-directional bit stream type infrastructures.
1.1 Features
„
10BASE-T/100BASE-TX, Auto, Full Duplex or Half Duplex
„
HP Auto-MDI/MDIX detects and corrects crossed cable
„
IEEE 802.3x flow control enable/disable
„
Real-time filtering with 256 MAC address table
„
Automatic address learning, aging and deletion after 5 minutes
„
Up to 340 packet-buffering capacity
„
Forwarding and filtering rate at wire speed with throughput latency of 1 frame.
„
Auto padding of undersized packets to meet the minimum Ethernet packet size requirement
„
Buffering modes can be selected according to the setting of WAN and LAN line speeds
„
Built-in 64K timing clock generator for WAN link
1.2 Specifications
„
LAN
Standard Fully compliant with IEEE 802.3/802.3u
Connector Shielded RJ-45
Speeds 10BASE-T/100BASE-TX, Auto, Full or Half Duplex
Frames Supports 64 to 1536 byte packet lengths (supports 802.1Q pass through)
„
WAN
Interface Fixed type ITU-T G.703 64K co-directional interface
Data Rate 64Kbps
Clock Source Tx/Rx internal, Tx/Rx external or recovery from co-directional data
Line 4 wires, 0.5 -0.7mm twisted pair cable
Range Up to 800m over 24AWG cable or better
Impedance 120 Ohms
"Pulse" amplitude 1.0V Nominal ± 0.1V
"Zero" amplitude 0V Nominal ± 0.1V
Single pulse width 3.9us
Double pulse width 7.8us
Clock frequency 64Kbps ± 100ppm.
Interface connector RJ-48C.
Complies with ITU-T G.703 and G.823.
Frame format Unframed only.
Line code 64Kbps co-directional line code.
„
Ethernet Bridge
Protocol Synchronous HDLC (ISO 13239)
Bridge Address learning, aging and deletion after 5 minutes
MAC Table 256 addresses
Buffer 340 packet buffer
„
General
Power AC model: Built-in AC Switching Power, 90~250VAC, 47~63Hz
DC model: Built-in DC to DC, 18~72VDC
Consumption less than 5 watts
Environment Temperature: 0~50
o
C (32~125F)
Humidity: <90% non-condensing
Dimensions 235(L) x 195(W) x 45(H) mm (10.25" L x 7.675" W x 1.75" H)
Weight 825g (1.8 lb.) net