CTC Union ETU011 User Manual
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CTC Union ETU011 User Manual

CTC Union ETU011 User Manual

Single modular data port g.703 e1 access unit
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ETU011
ETU011U
Single Modular Data Port
G.703 E1 Access Unit

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  • Page 1 ETU011 ETU011U Single Modular Data Port G.703 E1 Access Unit...
  • Page 3 This manual supports the following models*: ETU011-AC universal AC model, ETU/TTU Modular I/F ETU011-DC universal (18~75V) DC model, ETU/TTU Modular I/F ETU011U-AC unframed E1, universal AC model, ETU/TTU Modular I/F ETU011U-DC unframed E1, universal (18~75V) DC model, ETU/TTU Modular I/F...

  • Page 5: Table Of Contents

    CHAPTER 1 INTRODUCTION................7 1.0 W ......................7 ELCOME 1.1 P ..................7 RODUCT ESCRIPTION 1.2 T ................7 ECHNICAL PECIFICATIONS 1.3 E1 ..................10 SIGNAL STRUCTURE 1.4 ETU011 C ..................11 APABILITIES 1.5 S ..............11 YSTEM IMING ONSIDERATIONS 1.6 F ................14 UNCTIONAL ESCRIPTION 1.7 L ..................15 OOPBACK EATURE 1.8 T...
  • Page 6 Table of Contents APPENDIX......................29 A.1 ETU011 A DIP S ............29 WITCH VERVIEW A.2 DIP SW1 T .............29 ETTING A.3 DIP SW2 T 15 S ............30 ETTING A.4 DIP SW3 T 16 T 23 S ............31 ETTING A.5 DIP SW4 T...

  • Page 7: Chapter 1 Introduction

    1.1 Product Description The ETU011 is a single modular port access unit for E1 or Fractional E1 service that supports completely random setting of E1 timeslots. The ETU011U is a single modular serial port access unit for Unframed E1 only. The ETU011 AC model has a universal, auto-switching power supply (90~250VAC) while the DC model's internal regulator module accepts DC voltages from 18 to 75 volts.
  • Page 8 Chapter 1. Introduction User Data Channel Modular Interfaces -V.35 -RS-530 -RS-449 (RS-530 Plus cable) -X.21 -RS-232 -G64K co-directional -NRZ -ET100 Bridge -ET100R Router Interface Connectors V.35 Interface 34 pin, M-Block Female RS-530 25 pin, DB25 Female 37 pin, DB37 Female (adapter cable) RS-449 X.21 15 pin, DB15 Female...
  • Page 9 Chapter 1. Introduction Diagnostics Test Switches/Diagnostics -Digital local loop back -Analog local loop back -Digital remote loop back -Test pattern / generator LED indicators Green Power Green Transmit data Green Receive data Green Request to sent Green Data carrier detect Tx CLK Loss Transmit clock loss Signal Loss...

  • Page 10: E1 Signal Structure

    Chapter 1. Introduction 1.3 E1 signal structure The E1 line operates at a nominal rate of 2.048Mbps. The data transferred over the E1 line is organized into frames, with each E1 frame containing 256 bits. The 256 bits consist of 32 time slots of eight bits each, which carry the data payload. E1 transmission utilizes two main types of framing: Frame Alignment Signal (FAS) and Multi-Frame Alignment Signal (MFAS).

  • Page 11: Etu011 Capabilities

    ETU011 E1 link transmit clock can be selected by the user. The following E1 link transmit timing modes are available. Recovery (loop back) timing: The ETU011 E1 link transmit clock is locked to the recovered receive clock. This is usually the timing mode selected for network operation. Internal timing: The ETU011 E1 link transmit clock is derived from the internal clock oscillator.
  • Page 12 The ETU011 can select from one of five clocking mode settings. Clock mode 0 (DCE 1): The ETU011 data channel operates as a DCE and provides both transmit and receive clocks (recovered timing) to the data terminal equipment connected to the user channel.
  • Page 13 E1 transmit link. Clock mode 3 (DTE 2): The ETU011 data channel is physically wired as DCE. However, the ETU011 may operate as a DTE when connected to other DCE equipment by using a cross-over data cable and by setting the clock mode to the DTE2 setting. NOTE: The X.21 data channel cannot be operated in clock timing mode 3 (DTE2).

  • Page 14: Functional Description

    E1 transmit link. 1.6 Functional Description The ETU011 is a single port access unit for E1 or Fractional E1 service. The ETU011U is a single port access unit for Unframed E1 only. The ETU011 AC model has a universal, auto-switching power supply (90~250VAC) while the DC model's internal regulator module accepts DC voltages from 18 to 75 volts.

  • Page 15: Loopback Feature

    The operator at either end of the line may test both the ETU011 and the line in the digital loop back mode. The loop back is controlled by either a manual switch or by the V.35 DTE interface.
  • Page 16 In the previous application, the ETU011 is connected over hardwire point to point. The ETU011 can also be connected to an E1 network or to E1's provided by SDH equipment. Within the SDH network, the E1 can be cross mapped at the VC12 level to provide point to point connections.

  • Page 17: Chapter 2. Installation

    Install the ETU011 within reach of an easily accessible grounded AC outlet. DC power capable units connect via terminal block connection. Allow at least 10 cm (4 inch) clearance at the rear of the ETU011 for signal lines and interface cables. 2.3 Mechanical Assembly The ETU011 is designed for tabletop or bench installation, and is delivered completely assembled.

  • Page 18: Dip Switches

    RRING (Receive data in) Cable and Termination Use a shielded twisted pair cable between the ETU011 and the DTE device. The receivers on the ETU011 are 100 Ohm terminated. If problems are encountered with the connection to the V.35 DTE interface, make sure that the DTE interface is terminated correctly.
  • Page 19 Chapter 2. Installation Figure 2.3 ETU011 DIP Switches, Version 1.2G PCB...
  • Page 20 Chapter 2. Installation Figure 2.4 ETU011U DIP Switches, Version 1.2G PCB Note: There are no timeslot setting switches (SW1-4) on the ETU011U model.

  • Page 21: Chapter 3. Operation

    This chapter describes the ETU011 controls and indicators, explains operating procedures, and supplies instructions for settings. Installation procedures (in Chapter 2) must be completed and checked before attempting to operate the ETU011. 3.2 Controls and Indicators All controls (push-button switches) and LED indicators are located on the ETU011 front panel.
  • Page 22 Control Switch Function Loc dig loopbk The local digital loop back switch causes the local ETU011 to loop E1 received data to its transmitter. Loc ana loopbk The local analog loop back switch causes the local ETU011 to loop transmitter output back to its receiver.

  • Page 23: Operating Procedure

    2. Diagnostic loops are required. 3.3.1 Visual Indicators The ETU011 is turned on when its AC power cord (or central office DC power) is connected to an AC power outlet (or the DC input connections) and the power switch is turned to the ON position. Initially, all LEDs will light, followed by all LEDs flashing rapidly 5 times.

  • Page 24: Quick Start Guide

    E1 Recovery timing Based on the above point to point application, use the following DIP switch graphic to visually set the ETU011 units. This example will use CCS (PCM31) framing with CRC4 and provide 1024kbps (16 timeslots) throughput. ON=Enabled Pushbuttons...

  • Page 25: Chapter 4. Test & Diagnostics

    The loop back test buttons (Loc dig loopbk, Loc ana loopbk and Rem loopbk) and the LED indicators built into the ETU011 allow for rapid checking of the data terminal, ETU011 and the E1 line. Before testing the operation of the data system equipment and their line circuits, ensure that all units are turned on and are configured correctly.

  • Page 26: Local Analog Loop Back

    This test is activated by depressing the "Loc dig loopbk" button. The test consists of looping the received data back to the remote ETU011. This test checks the performance of the local ETU011, the remote ETU011 and the connections between them (see Figure 4.3).

  • Page 27: Remote Digital Loop Back

    This test is activated by depressing the "Rem loopbk" push button. The test determines the performance both of the local and the remote ETU011 units, as well as their interconnecting lines. The remote digital loop back test consists of providing a loop back at the remote ETU011 (see Figure 4.4).
  • Page 28 Chapter 4. Test & Diagnostics This page left blank intentionally.

  • Page 29: Appendix

    Appendix A. DIP SW. Setting ETU011 Appendix A.1 ETU011 All DIP Switch Overview DIP SW FUNCTION COMMENT GROUP Time slot 0 to 7 setting See Table A.2 Time slot 8 to 15 setting See Table A.3 Time slot 16 to 23 setting See Table A.4...

  • Page 30: Dip Sw2 Time Slot 8 To 15 Setting

    Appendix A. DIP SW. Setting ETU011 A.3 DIP SW2 Time Slot 8 To 15 Setting DIP SW2 STATE FUNCTION COMMENT Time slot 8 disable Time slot 8 enable Time slot 9 disable Time slot 9 enable Time slot 10 disable...

  • Page 31: Dip Sw3 Time Slot 16 To 23 Setting

    Appendix A. DIP SW. Setting ETU011 A.4 DIP SW3 Time Slot 16 To 23 Setting DIP SW3 STATE FUNCTION COMMENT Time slot 16 disable Time slot 16 enable Note 1 Time slot 17 disable Time slot 17 enable Time slot 18 disable...

  • Page 32: Dip Sw4 Time Slot 24 To 31 Setting

    Appendix A. DIP SW. Setting ETU011 A.5 DIP SW4 Time Slot 24 To 31 Setting DIP SW4 STATE FUNCTION COMMENT Time slot 24 disable Time slot 24 enable Time slot 25 disable Time slot 25 enable Time slot 26 disable...

  • Page 33: Dip Sw5 Parameter Group 1 Setting

    Appendix A. DIP SW. Setting ETU011 A.6 DIP SW5 Parameter Group 1 Setting DIP SW5 STATE FUNCTION COMMENT STATE OFF OFF OFF Clock mode 0 (DCE1) ON OFF OFF Clock mode 1 (DCE1) OFF ON OFF Clock mode 2 (DTE1)

  • Page 34: Dip Sw6 Parameter Group 2 Setting

    Appendix A. DIP SW. Setting ETU011 A.7 DIP SW6 Parameter Group 2 Setting DIP SW6 STATE FUNCTION COMMENT STATE Line Impedance: 120 Ohm TP (RJ-45) Line Impedance: 75 Ohm Coaxial (BNC) RC Phase: Normal RC Phase: Inverted TC Phase: Normal TC Phase: Inverted DCD always ON, except E1 Sig.Loss...

  • Page 35: Clock

    Appendix A. DIP SW. Setting ETU011 A.8 Clock Mode Details CLOCK DIPSW 5 E1 LINE USER DATA PORT MODE STATE TRANSMIT RECEIVE TRANSMIT CLOCK CLOCK CLOCK RECOVERY RECOVERY OFF OFF OFF RECOVERY (DCE1) Output to RC Output to TC INTERNAL...

  • Page 36: Etu011U All Dip Switch Overview

    Appendix B. DIP SW. Setting ETU011U B.1 ETU011U All DIP Switch Overview DIP SW FUNCTION COMMENT GROUP Parameter group 1 setting See Table B.2 Parameter group 2 setting See Table B.3 Table B.1 All DIP Switch Overview Note: The ETU011U operates in unframed mode ONLY. The user data rate is fixed at 2048K.

  • Page 37: Dip Sw6 Parameter Group 2 Setting

    Appendix B. DIP SW. Setting ETU011U B.3 DIP SW6 Parameter Group 2 Setting DIP SW6 STATE FUNCTION COMMENT STATE Line Impedance: 120 Ohm TP (RJ-45) Line Impedance: 75 Ohm Coaxial (BNC) RC Phase: Normal RC Phase: Inverted TC Phase: Normal TC Phase: Inverted DCD always ON, except E1 Sig.Loss DCD follows RTS, except E1 Sig.Loss...

  • Page 38: Clock

    Appendix B. DIP SW. Setting ETU011U B.4 Clock Mode Details CLOCK DIPSW 5 E1 LINE USER DATA PORT MODE STATE TRANSMIT RECEIVE TRANSMIT CLOCK CLOCK CLOCK RECOVERY RECOVERY OFF OFF OFF RECOVERY (DCE1) Output to RC Output to TC INTERNAL INTERNAL INTERNAL ON OFF OFF...

  • Page 39: E1 Line Connectors

    Frame ground Table C.1b E1 RJ-45 connector pin allocation C.2 X.21 Data Module Connector When the ETU011 is ordered with an X.21 interface, the physical interface is a 15- pin female D-type connector wired in accordance with Table C.2. SIGNAL...

  • Page 40: Connector

    Appendix C. Interface Connections C.3 RS-232 Data Module Connector When the ETU011 is ordered with a RS-232 interface, the physical interface is a 25-pin female D-type connector wired in accordance with Table C.3. SIGNAL CIRCUIT DIRECTION DESCRIPTION FUNCTION Chassis ground.

  • Page 41: V.35 Data Module Connector

    Appendix C. Interface Connections C.4 V.35 Data Module Connector When the ETU011 is ordered with a V.35 interface, the physical interface is a 34- pin female M-type connector wired in accordance with Table C.4. SIGNAL CIRCUIT DIRECTION DESCRIPTION FUNCTION Protective Chassis ground.

  • Page 42: Rs-530 Data Module Connector

    Appendix C. Interface Connections C.5 RS-530 Data Module Connector When the ETU011 is ordered with an RS-530 interface, the physical interface is a 25-pin female D-type connector wired in accordance with Table C.5. SIGNAL CIRCUIT DIRECTION DESCRIPTION FUNCTION Protective Chassis ground.
  • Page 43 Appendix C. Interface Connections C.6 RS-530 to RS-449 Adapter Cable When the ETU011 is ordered with a RS-449 interface, the physical interface is a 25 pin D-type connector (RS-530) with an adapter cable to 37-pin male D-type connector wired in accordance with Table C.6.

  • Page 44: G.703/64K Codirectional Connector

    Appendix C. Interface Connections C.7 G.703/64K Codirectional Connector When the ETU011 is ordered with a G.703/64K interface, the physical interface is a 15-pin female D-type connector wired in accordance with Table C.7. SIGNAL DIRECTION DESCRIPTION FUNCTION Protective Chassis ground. Ground May be isolated from Signal Ground.

  • Page 45: G.703 Nrz

    Appendix C. Interface Connections C.8 G.703 NRZ When the ETU011 is ordered with a G.703 NRZ interface, the physical interface is 4 BNC female connectors wired in accordance with Table C.8. Specifications: Line Code: Impedance: 50 ohms Signal Level: Logic "1": 0V +/- 0.3V Logic "0": -1.5V +/- 0.3V...

  • Page 46: Et100 10/100Base-Tx Ethernet Bridge

    Appendix C. Interface Connections C.9 ET100 10/100BASE-TX Ethernet Bridge When the ETU011 is ordered with an ET10/100 Interface, the unit is not only an access unit for E1, but also becomes a high performance WAN bridge for 10Base-T or 100Base-TX Ethernet extension. The physical...

  • Page 47: Et100R 10/100Base-Tx Ethernet Router

    Appendix C. Interface Connections C.10 ET100R 10/100BASE-TX Ethernet Router When the ETU011 is ordered with an ET100R Interface, the unit is not only an access unit for E1, but also becomes a high performance Router for 10Base-T or 100Base-TX Ethernet LAN connection.

  • Page 48: Etu/Ttu-V35

    Appendix D. Interface Module Options At the time of this printing, the ETU011 has nine types of user-replaceable data channel modules. 1. ETU/TTU-V35 V.35 Module: Provides one fully compliant ITU-T V.35 interface on a Female "M" block, 34 pin connector. Operates at any n56/n64 fractional or unframed E1 speed.

  • Page 49: Etu/Ttu-X21

    Appendix D. Interface Module Options 4. ETU/TTU-X21 X.21 Module: Provides one fully compliant ITU-T X.21 interface on a female "D" type 15 pin connector. Operates at any n56/n64 fractional or unframed E1 speed. No additional cable is included. This module presents DCE signals to a directly connected DTE device.

  • Page 50: Etu/Ttu-Nrz

    Appendix D. Interface Module Options 7. ETU/TTU-NRZ NRZ Module: Provides one NRZ interface on four(4) female BNC type connectors. Operates at any n56/n64 fractional or unframed E1 speed. The 4 signal cables provide TxData, RxData, TxClk and RxClk. 8. ETU/TTU-ET10/100 Ethernet Bridge Module: Utilizes standard LAN pin out on one RJ-45 connector, providing connection to Ethernet...
  • Page 51 CTC Union Technologies Inc Fax:(886)2 27991355 Tel:(886)2 26591021 Attn : Technical Support Division E-mail:info@ctcu.com From Company: Taipei Taiwan Name: Tel: ( Fax:( MODEL: ETU011 ETU011U ACTIVITY: As attached in DIP switch setting table SYS CONFIGURATION: Question:...
  • Page 52 Technical Inquiry Form MODEL No.: ETU011 ETU011U 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.

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