USER MANUAL MODEL 2711 Series MicroLink-T1™ T1/Fractional T1 CSU/DSU Copyright © 2006 Patton Electronics Company All Rights Reserved. CERTIFIED An ISO-9001 Certified Company Part# 07M2711-UM SALES OFFICE Doc# 08606U2-001, (301) 975-1000 Rev. D TECHNICAL SUPPORT Revised 10/26/06 (301) 975-1007 http://www.patton.
TABLE OF CONTENTS Section 1.0 GENERAL INFORMATION Page 1.0 General Information...............................................................2 1.1 Warranty Statement 1.2 CE Notice 1.3 Radio and TV Interference 1.4 FCC Information 1.4.1 FCC Compliane 1.5 Industry Canada Notice 1.6 Service 2.0 General Information ..............................................................6 2.1 Features 2.2 General Product Description 2.3 Supported Applications 3.0 Configuration ...........................................
1.3 RADIO AND TV INTERFERENCE 1.4.1 FCC Compliance: The Model 2711 Series generates and uses radio frequency energy, and if not installed and used properly—that is, in strict accordance with the manufacturer's instructions—may cause interference to radio and television reception.
2.0 GENERAL INFORMATION 1.6 SERVICE All warranty and non-warranty repairs must be returned freight prepaid and insured to Patton Electronics. All returns must have a Return Materials Authorization number on the outside of the shipping container. This number may be obtained from Patton Electronics Technical Support at: tel: (301) 975-1007; email: support@patton.com www: http://www.patton.com. NOTE: Packages received without an RMA number will not be accepted.
3.0 CONFIGURATION 2.3 SUPPORTED APPLICATION The Model 2711 CSU/DSU is supplies the interface between the telephone company and customer premises equipment (CPE) such as a router. The 2711 can also be used as a high-speed short haul modem for campus applications. Before placing the Model 2711 into service, the unit must be configured to match both the DTE and Network interface parameters. Configuration may be accomplished using pc board mounted DIP Switches or via software using the RS-232 control port. 3.
3.1.1 DIP Switches SW1 - SW8 Switches SW1.8, SW1.7, SW1.6, SW1.5 & SW1.4 The configuration switches on the DIP switch pack will allow you to specify data rates, line framing and coding, DSO rate, clock mode and Line Build Out (LBO). Factory default settings of all switches are shown in the table below. These switches set the DTE date rate. Each setting represents an nx56/nx64 setting. The chart below shows the switch settings and the acheived DTE data rate. SWITCH SETTING SUMMARY TABLE Position SW1.
Switches SW1.1 SW1.2, SW1.3, SW 2.7 & SW2.8 Switches SW2.6 & SW2.5 Line Build Out These switches set the starting channel. The starting channel is the first channel that carries valid data. This channel can be set to any value between 1 and 24. If the starting channel is other than 1, then the maximum possible bandwidth will be less than 1536 kbps. For example, if the starting channel is set to be 12, then the maximum bandwidth is limited to 13x64 kbps (channels 12~24), or 832 kbps.
B8ZS: This stands for "Bipolar 8 Zero Substitution." This line code ensures minimum ones density. Long sequences of zeros are specially encoded. This line code allows any data pattern to be transmiited without causing ones density problems. Thus, it allows the use of 64 kbps timeslots. SW2.4 Off On Line Code B8ZS AMI Switch SW2.3 Line Framing This switch is used to set the frame. There are three framing modes available in the Model 2711 Series: ESF, D4 and Unframed. When SW1.8~SW1.
4.0 INSTALLATION 5.0 OPERATION The Model 2711 is equipped with a DTE, network, and power interface. This section briefly describes connection to each. 4.1 DTE INTERFACE CONNECTION The DTE interface is a V.35 DCE presented as an M/34 male connector. This interface is designed to plug directly into a DTE interface (See Appendix D for V.35 interface pin assignments). 4.2 NETWORK INTERFACE CONNECTION Once the Model 2711 is installed and configured properly it is ready to place into operation.
ALM (Alarm) glows red to indicate that one of several alarm conditions exist. These conditions may be local alarms or remote alarm conditions. Alarms may occur due to: • Loss of Synchronization • Loss of Frame • AIS (Blue Alarm) • Yellow Alarm ERR (Error) flashes to indicate errors. There are several flashing patterns to indicate the type of error. Invalid Switch Configuration: It is possible to request more bandwidth than is possible.
APPENDIX A APPENDIX B PATTON MODEL 2711 SERIES SPECIFICATIONS PATTON MODEL 2711 SERIES CABLE RECOMMENDATIONS WAN Speed: WAN Connection: Nominal Impedance: DTE Interface: Line Coding: Line Framing Receive LBO: Transmit LBO: Clock Options: Diagnostics: 1.544 Mbps RJ-48C 100 Ohms Integral V.35, M/34 male or RS-422/RS530 (DB-25 Male) AMI/B8ZS D4/ESF Automatic Selectable - 0, 7.5, 15, or 22.
APPENDIX C PATTON MODEL 2711 SERIES FACTORY REPLACEMENT PARTS AND ACCESSORIES Patton Model # APPENDIX D PATTON MODEL 2711 SERIES INTERFACE PIN ASSIGNMENT RJ-48C T1 (DS0) Network Interface (RJ-48S Female Modular Jack) Description 2711/CM/120 ...................T1 Nx64 CSU/DSU(M/34 Male, 120VAC) 2711/CM/UI .....................T1 CSU/DSU (V.35 M/34 Male, UI) 07M2711..........................
APPENDIX D APPENDIX E (continued) PATTON MODEL 2711 SERIES POWER SUPPLY INTERFACE PATTON MODEL 2711 SERIES INTERFACE PIN ASSIGNMENT M/34 Connector, Terminal Interface Pin # A B D E F L M N P R S T U V W X Y AA KK Signal GND (Earth Ground/Shield) SGND (Signal Ground) CTS (DCE Source) DSR (DCE Source, Always On) CD (DCE Source) LL (Local Loop, DTE Source) TM (Test Mode Indicators, DCE Source) RL (Remote Loop, DTE Source) TD (Transmit Data +, DTE Source) RD (Receive Data +, DCE Source) TD/ (Transmit Data
