CTC Union ET100/NRZ User Manual
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CTC Union ET100/NRZ User Manual

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USER MANUAL

ET100/NRZ
Synchronous WAN Ethernet Bridge
10/100Base-TX Ethernet over NRZ
CTC Union Technologies Co., Ltd.

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Summary of Contents for CTC Union ET100/NRZ

  • Page 1: User Manual

    USER MANUAL ET100/NRZ Synchronous WAN Ethernet Bridge 10/100Base-TX Ethernet over NRZ CTC Union Technologies Co., Ltd.
  • Page 3 NeiHu Hi-Tech Park 8F, No. 60 Zhouzi Street. Neihu, Taipei, 114 Taiwan ET100/NRZ Ethernet WAN Bridge, User Manual Version 1.0 July 1, 2008 Release This manual supports the following models: ET100/NRZ Ethernet WAN Bridge All specifications subject to change without notice.
  • Page 4 Should the Buyer purchase or use a CTC Union product for any such unintended or unauthorized application, the Buyer shall indemnify and hold CTC...

  • Page 5: Table Of Contents

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

  • Page 7: Overview

    ET100/NRZ LAN-WAN Bridge 1.0 Overview The ET100/NRZ 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 NRZ bit stream type infrastructures.
  • Page 8 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. RX Timing RX Data TX Timing TX Data Figure 1. ET100/NRZ Loop back paths...

  • Page 9: Functional Block Diagram

    Int. clock Clock Generator FILTER SYNC ENGINE SPEED N64K to plus 256 MAC Address Table 2048K IEEE802.3u I/F Full Duplex Link LED Half Duplex LAN Tx LED Auto-MDIX Phy LAN Rx LED LAN SIDE RJ-45 Figure 2: ET100/NRZ Functional Block Diagram...

  • Page 10: Unit Detail

    ET100/NRZ LAN-WAN Bridge 1.4 Unit Detail 4 5 6 7 8 9 10 Figure 3: ET100/NRZ Front Panel Detail Figure 4. ET100/NRZ Unit Detail...
  • Page 11 ET100/NRZ LAN-WAN Bridge PWR LED Green on, when external power adapter is plugged in and AC power is supplied to it. NRZ TD LED: Green, on or flashing indicates receiving data on the NRZ interface. NRZ RD LED: Green, on or flashing indicates transmitting data on the NRZ interface.

  • Page 12: Theory Of Operation

    The ET100/NRZ utilizes both Ethernet Bridging and HDLC encapsulation to provide a connection between LANs over bit stream architectures. The LAN side of the ET100/NRZ 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.

  • Page 13: Dip Switch Setting Tables

    1.6 DIP Switch Setting Tables: When the ET100/NRZ is set to internal clock (SW3 3&4 OFF), then SW2-1 to SW2-5 may be used to configure the data rate and TX Timing signal's speed. If SW3 3 is ON and 4 is OFF, then all SW2-1 to SW2-5 are ignored and the unit operates by recovering the clock from the NRZ's RX Timing.

  • Page 14: Interface Settings

    ET100/NRZ LAN-WAN Bridge 1.6.2 Interface Settings: SW STATE Function Receive Timing setting Internal oscillator -1,-2 NRZ interface receive timing PLL mode (Recovery from NRZ interface receive data) Reserved Transmit Timing setting Internal oscillator -3,-4 NRZ interface receive timing PLL mode (Recovery from NRZ interface receive data)

  • Page 15: Clocking Examples

    One ET100/NRZ is configured with an internal clock to facilitate point-to-point application with another ET100/NRZ. The clock may be set to full 2.048Mbps or may be set to any n x 64 speed formula. The unit configured for external clock receives timing from the unit providing the NRZ clock. In this configuration, the rate DIP settings of the external clocked ET100/NRZ are ignored.
  • Page 16 Figure 7: Point to Point, over existing NRZ equipment (recovery clock) In this final example, the ET100/NRZ is operated without any dedicated clocking lines. In the point to point example, one unit is configured with internal transmit clock and the data rate is set by DIP switch for n x 64.
  • Page 17 CTC Union Technologies Inc Fax:(886)2 27991355 Tel:(886)2 26591021 Attn : Technical Support Department E-mail:support@ctcu.com From Company: Name: Tel: ( Fax:( MODEL: ET100/NRZ ACTIVITY: As attached in DIP switch setting table SYS CONFIGURATION: Question...
  • Page 18 Technical Inquiry Form MODEL No.: ET100/NRZ Please fill in the DIP switches configuration with ' ' marks into the following table. Send it to us by fax, and we will reply to you immediately. Your Setting CTC Suggestion SW NO. DIP...
  • Page 20 CTC Union Technologies Co., Ltd. Far Eastern Vienna Technology Center (Neihu Technology Park) 8F, No.60, Zhouzi Street Neihu District, Taipei 114, Taiwan Phone:(886) 2.2659.1021 Fax:(886) 2.2799.1355 E-mail: info@ctcu.com Url:http://www.ctcu.com...

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