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ET100/G64 LAN-WAN Bridge

1.3 Functional Block Diagram

9

Clock

Generator

SYNC

SPEED

N64K

G.703 Co-directional

Line Transceivers

Figure 2:

ET100/G64

Block Diagram

SYNC

HDLC

CONTROLLER

Full Duplex

Half Duplex

Ext. clock

Int. clock

FILTER

ENGINE

plus 256 MAC Address Table

WAN SIDE

RJ-45

Female

LAN SIDE

RJ-45

Clock

Source

IEEE802.3u I/F

Link LED

LAN Tx LED

LAN Rx LED

WAN Tx LED

WAN Rx LED

Auto-MDIX Phy

TX+ TX- RX+ RX-

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Summary of Contents for ET100/G64

Page 1: ...ET100 G64 Synchronous WAN Ethernet Bridge 10 100Base TX Ethernet over G 703 64K Co directional ...

Page 2: ......

Page 3: ... Street Neihu District Taipei 114 Taiwan ET100 G64 Ethernet WAN Bridge User Manual Version 1 0 Nov 4 2008 Release Version 1 1 Jul 21 2009 Update This manual supports the following models ET100 G64 Ethernet WAN Bridge All specifications subject to change without notice ...

Page 4: ...rchase or use a CTC Union product for any such unintended or unauthorized application the Buyer shall indemnify and hold CTC Union Technologies and its officers employees subsidiaries affiliates and distributors harmless against all claims costs damages expenses and reasonable attorney fees arising out of either directly or indirectly any claim of personal injury or death that may be associated wi...

Page 5: ...res 7 1 2 Specifications 7 1 3 Functional Block Diagram 9 1 4 Unit Detail 10 1 5 Theory of Operation 12 1 6 DIP Switch Setting Tables 13 1 6 1 Data Rate Settings 13 1 6 2 Interface Settings 13 1 6 3 LAN Bridge Settings 13 1 7 Clocking Examples 14 ...

Page 6: ...Table of Contents ii This page left blank intentionally ...

Page 7: ... 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 ...

Page 8: ...transmit event 100M Green OFF 10Base T ON 100Base TX Full Green OFF Half duplex ON Full duplex Error Red OFF No LAN error event ON LAN error event Test Red OFF No loop back ON Loop back enable Loop back When the Loop back push button switch is depressed Received timing and data are looped back out the Transmit timing and data interfaces Co directional TX RX TX RX Figure 1 ET100 G64 Loop back paths...

Page 9: ...onal Line Transceivers Figure 2 ET100 G64 Block Diagram SYNC HDLC CONTROLLER Full Duplex Half Duplex Ext clock Int clock FILTER ENGINE plus 256 MAC Address Table WAN SIDE RJ 45 Female LAN SIDE RJ 45 Clock Source IEEE802 3u I F Link LED LAN Tx LED LAN Rx LED WAN Tx LED WAN Rx LED Auto MDIX Phy TX TX RX RX ...

Page 10: ...ET100 G64 LAN WAN Bridge 1 4 Unit Detail 1 1 2 2 3 3 4 10 15 19 16 11 17 18 12 13 14 5 6 7 8 9 10 4 11 11 5 6 7 8 9 10 Figure 3 ET100 G64 Front Panel Detail Figure 4 ET100 G64 Unit Detail ...

Page 11: ...he Ethernet is connected in Full Duplex Off is Half Duplex 9 Ethernet Error LED Red when on indicates an error condition on the Ethernet interface 10 Test LED Red when on indicated that the Loop back test is active 11 Loop back This pushbutton switch is used to initiate co directional loopback towards the remotely connected device 12 SW2 configuration DIP switch refer to setting tables 13 SW3 conf...

Page 12: ...l The ET100 G64 utilizes both Ethernet Bridging and HDLC encapsulation to provide a connection between LANs over bit stream architectures The LAN side of the ET100 G64 receives an Ethernet packet and examines its destination MAC address If it knows the MAC is on the local network then it simply drops the packet Otherwise if it knows the packet destination is on the remote side or if it cannot be d...

Page 13: ...ettings for Co directional Interface Configuration 1 6 3 LAN Bridge Settings SW4 SW STATE Function 1 2 Memory Buffer configuration OFF OFF LAN to WAN 308 packets WAN to LAN 32 packets default OFF ON LAN to WAN 170 packets WAN to LAN 170 packets ON OFF LAN to WAN 32 packets WAN to LAN 308 packets 1 2 ON ON Reserved OFF MDI 1 1 to HUB 3 ON Auto MDIX default OFF Ethernet Speed 100Base TX 4 ON Etherne...

Page 14: ... capacity When SW4 1 is OFF and SW4 2 is ON this buffer is divided equally between LAN to WAN and WAN to LAN packet traffic When the LAN is Fast Ethernet and the WAN connection is slow the buffer may be better utilized by applying a greater portion to the LAN to WAN packet traffic In this case set both SW4 1 2 to OFF This will provide a 9 to 1 buffer division for LAN to WAN versus WAN to LAN buffe...

Page 15: ...xisting G 703 64K co directional transmission equipment which already supplies the clock to the tributary equipment G 703 64K co directional Transmission Equipment TD TD RD RD RD RD TD TD 64K Receive 64K Receive Figure 7 Point to Point over existing co directional equipment recovery clock 15 ...

Page 16: ...ET100 G64 LAN WAN Bridge 16 ...

Page 17: ...s Inc Fax 886 2 27991355 Tel 886 2 26591021 Attn Technical Support Department E mail techsupport ctcu com From Company Name Tel Fax MODEL ET100 G64 ACTIVITY As attached in DIP switch setting table SYS CONFIGURATION Question ...

Page 18: ...estion SW NO DIP FUNCTION ON OFF ON OFF SW1 na Loop Back X SW2 1 8 reserved SW3 1 Tx Timing Setting X SW3 2 AIS X SW3 3 Octal Code Violation X SW3 4 8 Reserved SW4 1 Bridge Buffer Conf X SW4 2 Bridge Buffer Conf X SW4 3 MDIX Setting X SW4 4 10 100Base manual X SW4 5 Full Half Duplex manual X SW4 6 auto negotiation manual X SW4 7 802 3x Flow Control l X SW4 8 Bridge Filter X Additional comments que...

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