CTC Union ET100/G64 User manual

ET100/G64
Synchronous WAN Ethernet Bridge
10/100Base-TX Ethernet
over G.703 64K Co-directional

CTC Union Technologies Co., Ltd.
Neihu Technology Park
8F, No. 60 Zhouzi 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.

LEGAL
The information in this publication has been carefully checked and is believed to be entirely accurate at
the time of publication. CTC Union Technologies assumes no responsibility, however, for possible errors
or omissions, or for any consequences resulting from the use of the information contained herein. CTC
Union Technologies reserves the right to make changes in its products or product specifications with the
intent to improve function or design at any time and without notice and is not required to update this
documentation to reflect such changes.
CTC Union Technologies makes no warranty, representation, or guarantee regarding the suitability of its
products for any particular purpose, nor does CTC Union assume any liability arising out of the
application or use of any product and specifically disclaims any and all liability, including without
limitation any consequential or incidental damages.
CTC Union products are not designed, intended, or authorized for use in systems or applications intended
to support or sustain life, or for any other application in which the failure of the product could create a
situation where personal injury or death may occur. Should the Buyer purchase 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 with such unintended or
unauthorized use, even if such claim alleges that CTC Union Technologies was negligent regarding the
design or manufacture of said product.
TRADEMARKS
Microsoft is a registered trademark of Microsoft Corp.
HyperTerminal™ is a registered trademark of Hilgraeve Inc.
User Manual
Version 1.0 November 2008 Release
This manual supports the following:
ET100/G64 -AC
ET100/G64 -DC
This document is the first official release manual. Please check CTC Union's website for any updated
manual or contact us by E-mail at [email protected]. Please address any comments for improving this
manual or to point out omissions or errors to [email protected]. Thank you.
CTC Union maintains a support web site (support.ctcu.com) where you may obtain the latest manual,
quick installation guide, and operational firmware. Membership to this web site is free, however, you must
be a registered member in order to access any software updates.
CTC Union Technologies Co., Ltd.
2008-2009 Copyright, All rights reserved.

Table of Contents
i
1.0 Overview................................................................................................................................................. 7
1.1 Features................................................................................................................................................... 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

Table of Contents
ii
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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
HPAuto-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: 0~50oC (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

ET100/G64 LAN-WAN Bridge
LED Indicators
PWR Green ON Power ON
OFF Power OFF
TD Green ON Codirectional transmit data is mark “1”
OFF Codirectional transmit data is space “0”
Flash Codirectional transmit data is changed
RD Green ON Codirectional receive data is mark “1”
OFF Codirectional receive data is space “0”
Flash Codirectional receive data is changed
LINK Green ON Ethernet link
OFF Ethernet no link
Receive Green OFF No LAN receive event
ON LAN receive event
Transmit Green OFF No LAN transmit event
ON LAN 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
Co-directional Pin Assignment
Pin Designation Description
1 RxRing Receive signal with negative polarity
2 RxTip Receive signal with positive polarity
4 TxRing Transmit signal with negative polarity
5 TxTip Transmit signal with positive polarity
7 FG Connects to frame ground
8 FG Connects to frame ground
8

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 Du
p
lex
Half Du
p
lex
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-

ET100/G64 LAN-WAN Bridge
1.4 Unit Detail
11 22 33 4
10
15
19
16
11
17 18
12
13
14
5 6 7 8 9 10
4 1111
5 6 7 8 9 10
Figure 3: ET100/G64 Front Panel Detail
Figure 4. ET100/G64 Unit Detail