CTC Union EOe-1 User manual

USER MANUAL
EOe-1
10/100Base Ethernet over G.703 Unframed E1

CTC Union Technologies Co., Ltd.
Far Eastern Vienna Building
Neihu Technology Park
8F, No. 60 ZhouZi St.
Neihu, Taipei, 114
Taiwan
EOe-1 Ethernet over E1, User Manual
Version 1.0 October 2003 First Printing
Version 1.01 October 2004 Second Printing
This manual supports the following models:
EOe-1 Ethernet over E1
Specifications subject to change without notice.

Table of Contents
i
Chapter 1. Introduction ……………….................. 1
1.1 General ……………………...………………………...… 1
1.2 Technical Specifications …………………………………2
1.3 E1 Signal Structure ……………………………………… 6
1.4 EOe-1 Capabilities ……………………………………….7
1.5 System Timing Considerations …………………………. 8
1.6 Functional Description ………………………………….. 10
1.7 Typical System Applications …………………………… 11
Chapter 2. Installation …………………...…. 13
2.1 General ………………………………………………….. 13
2.2 Site Preparations …………………………….................... 13
2.3 Mechanical Assembly ……………………..……………. 13
2.4 Electrical Installation ……………………………………. 13
2.5 DIP Switches and Jumper Settings .……….…………… 16
2.6 Rack Mount Installation ………………………………… 18
Chapter 3. Operation ……………………..…. 21
3.1 General ………………………………………………….. 21
3.2 Controls and Indicators …………………………………. 21
3.3 Operating Procedure ……………………………………. 23
Chapter 4. Test & Diagnostics ………..…..... 25
4.1 General ………………………………………………….. 25
4.2 Loop Back Tests ………………………………………… 25
4.3 Bit Error Rate Tester ……………………………………. 25
4.4 Local Loop Back ………….…………………………….. 27
4.5 Remote Loop Back ……………………………………… 28

Table of Contents
ii
Appendix A. DIP SW Setting EOe-1 ....……… 31
A.1 DIP SW1 Bridge, Ethernet and WAN Speed …..……… 31
A.2 DIP SW2 Memory Config and E1 Settings ..………….. 32
Appendix B. Interface Connections .……..… 33
B.1 E1 Line Connectors ……………………………………. 33
B.2 E1 Line Frame Ground ………………………………… 34
B.3 Ethernet RJ-45 Connector ……………………………… 34
Technical Inquiry Form

Chapter 1. Introduction
1
1.1 General
Thank you for choosing the EOe-1 Ethernet Bridge over
E1. The EOe-1 is a Channel Service Unit for unframed ITU-T
G.703 E1 that features a built-in Ethernet bridge. The CSU has a
built-in Network Terminating Unit (NTU) and may connect to
either 75 Ohm unbalanced, unframed E1 via coaxial cable and
BNC connectors or to 120 Ohm balanced, unframed E1 via
twisted pairs and a shielded RJ-48 connector. The EOe-1
Ethernet Bridge uses HDLC encapsulation to transport Ethernet
packets across the WAN and supports 10/100 auto-negotiation or
manual settings for 10M, 100M, Full or Half Duplex Ethernet.
The Ethernet port also supports a standard auto-MDIX feature
that will completely eliminate Ethernet cross-over cables or the
guessing that is sometimes involved in choosing a cable when
connecting to a HUB or a PC.
The EOe-1 is very easy to configure by using simple DIP
switch settings. Both the E1 and Ethernet Bridge configuration
settings require only two 8-pole DIP switches. Once configured
and set, the EOe-1 requires no further adjustments.
To skip the rest of the product introduction for the EOe-1 ,
please go directly to Chapter 2, "Installation".

Chapter 1. Introduction
2
1.2 Technical Specifications
E1 link
Framing Unframed
Bit Rate 2,048 Kbps
Line Code AMI
HDB3
Line Impedance 75 Ohms (BNC coaxial)
120 Ohms (RJ-48 twisted pair)
Relative Receive Level 0 to -43dB
"Pulse" Amplitude Nominal 2.37V+/-10% for 75 ohms
Nominal 3.00V+/-10% for 120 ohms
"Zero" Amplitude +/-0.1V
Transmit Frequency
Tracking
Internal Timing
Loopback Timing
+/-30 ppm
+/-50 ppm
Jitter Performance According to ITU-T G.823
Complies With ITU-T G.703
Interface Connectors BNC (unbalanced)
RJ-48 (balanced)

Chapter 1. Introduction
3
Ethernet Bridge
Features
10BASE-T/100BASE-TX, Full Duplex or Half Duplex
HPAuto-MDI/MDIX detects and corrects crossed cable
IEEE 802.3x flow control
Real-time filtering with 256 address tables
Automatic address learning, aging and deletion after 5 minutes
Up to 340 packet-buffering capacity
Forwarding and filtering rate at WAN 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
Ethernet interface has automatic Twisted Pair polarity correction
Specifications
LAN
Standard Fully compliant with IEEE 802.3/802.3u
Connector Shielded RJ-45
Speeds 10BASE-T/100BASE-TX, Full or Half Duplex
Frames Supports 64 to 1522 byte packet lengths, standard
and extended length frames for VLAN tagging, etc.
WAN
Protocol Synchronous HDLC
Data Rates 16K, 32K, 64K, 128K, 256K, 512K,1024K or
2048Kbps (DIP Switch selected)

Chapter 1. Introduction
4
Diagnostics
Test Switches/Diagnostics Local loop back
Remote loop back
Test pattern / generator
LED indicators
Power Green Power
Signal Loss Red E1 link signal loss
Alarm Red E1 link alarm, includes: BPV error / All
ones(AIS)
Link Green Ethernet link is good
TD Green Transmit data on Ethernet
RD Green Receive data on Ethernet
100 Green Ethernet is 100Base
Full Green Ethernet is Full Duplex
Error Red Ethernet Bridge Error (overflow)
Error Red Bit Errors received during BERT Test
Test Red Loop back and/or BERT Test active
Physical
Height: 45 mm (1-3/4")
Width: 195 mm (7-11/16")
Depth: 248 mm (9-25/32")
Weight: 850 g (1lb 14oz)