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Summary of Contents for Patton electronics 2500RC
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Page 1: User Manual
USER MANUAL MODEL 2500RC Series Models 2500RC, 2510RC and 2520RC: All-Rate CSU/DSU Rack Mount Card SALES OFFICE Part# 07M2500RC--D Doc# 099011UD (301) 975-1000 Revised 3/19/97 TECHNICAL SUPPORT C E R T I F I E D (301) 975-1007 An ISO-9001 http://www.patton.com... -
Page 2: Table Of Contents
3.2 Front Card Configuration - Software Switches 3.3 Rear Card Configuration 4.0 Installation ...26 4.1 The Model 1000R16 Rack Chassis 4.2 Installing the Model 2500RC Series into the Chassis 4.3 Wiring the Model 2500RC Series 5.0 Operation ...28 5.1 LED Descriptions 5.2 Status Displays... -
Page 3: Fcc Information
This number may be obtained from Patton Electronics Technical Support: (301) 975-1007; http://www.patton.com; or, support@patton.com. accepted. questions that might arise concerning the installation or use of your Patton Model 2500RC. Technical Service hours: 8AM to 5PM EST, Monday through Friday. Code Jacks 6.0F RJ48S 6.0F... -
Page 4: General Information
AT&T, Sprint and MCI. Dedicated models can also be used as a high speed modem for private twisted pair. The Model 2500RC Series is available in standalone or in rack- card versions (only rack card versions are covered in this manual). -
Page 5: Front Card Configuration - Hardware Switches
Before you can install and operate your Model 2500RC Series CSU/DSU, you must configure both the front and rear cards. The Model 2500RC Series has two sets of eight switches (S1 and S2), a reversible interface driver board and two Rotary Address switches (MSD and LSD). - Page 6 Switch S1-4: Circuit Assurance The transmitter and the CTS output can be configured to go On only when a working communication circuit is established. If Circuit Assurance is used, enable it on only one end of the communication link. Circuit Assurance should be enabled in Switched 56 mode. Circuit S1-4 Assurance...
- Page 7 Switches S2-1, S2-2 and S2-3: Rate Adapter/DTE Rate The Model 2500RC Series includes a rate adapter that allows the unit to be used with DTE devices that support rates lower than 56/64 kbps. All switch settings below are valid for line rates of 56 or 64 kbps.
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Page 8: Front Card Configuration - Software Switches
If you plan to use the software control port to configure or dial the Model 2500RC Series unit, you will need to configure each front card with a unique address. This is done by using a small screw driver to set the two rotary switches, as shown in Figure 4, below. - Page 9 From the Main Menu, selecting item 3, “Set Software Switch Parameters” will take you to the Software Switch Menu (below). From this screen, you can soft configure the 2500RC parameters. For each screen described below, selecting a numbered option and...
- Page 10 Choosing option 5 in the Software Switch Menu takes you to the Data Format Menu (below). This option controls whether an async-to- sync conversion is performed between the DTE and the Model 2500RC Series. (Data is always transferred synchronously between two Model 2500RC Series units.) For an asynchronous DTE, select the...
- Page 11 Choosing option 8 in the Software Switch Menu takes you to the DTE Loop Control Menu (below). The local and remote loopbacks on the Model 2500RC Series can be controlled from the DTE interface by raising or lowering the LL and RL signals. To allow the DTE to control these loopbacks in this manner, enable this option.
- Page 12 RTS off internally. This allows the rest of the multidrop network to resume operation. The Model 2500RC Series holds RTS off until the terminal drops RTS. The timer interval decreases as the line rate increases.
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Page 13: Rear Card Configuration
3.3 REAR CARD CONFIGURATION The Model 2500RC Series has two interface card options: the Model 1000RCM12548 (DB-25/RJ-48S) and the Model 1000RCM13448 (M/34/RJ-48S). Each of these options supports one interface connection and one 4-wire connection. Figure 5 (below) illustrates the two different interface options for the Model 2500RC Series. -
Page 14: Sgnd & Frgnd (Jb4)
Position 2&3 = SGND and FRGND Not Connected This section describes the functions of the Model 1000R16 rack chassis, tells how to install front and rear Model 2500RC Series cards into the chassis, and provides diagrams for wiring the interface connections correctly. -
Page 15: Installing The Model 2500Rc Series Into The Chassis
4.2 INSTALLING THE MODEL 2500RC SERIES INTO THE CHASSIS The Model 2500RC Series is comprised of a front card and a rear card. The two cards meet inside the rack chassis and plug into each other by way of mating 50 pin card edge connectors. Use the following... -
Page 16: Status Displays
Model 2500RC Series receiver does not detect a signal from the digital service provider (or, in the case of short-haul operation, from the remote Model 2500RC Series). If NS is lit, check for an unplugged cable, broken wire or an incorrect Line Rate selection. -
Page 17: Loopback Test Modes
5.2.2 Displaying Line/Loop Status To check the current status of the Model 2500RC Series and the associated circuit, go to the Main Menu and select item 4, “Display Line/Loop Status” . This will take you to a screen similar to the Line/Loop Status Monitor Screen (below). - Page 18 Model 2500RC Series', and the communication link between them. Any characters sent to the remote Model 2500RC Series in this test mode will be returned back to the originating device. For example, characters typed on the keyboard of...
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Page 19: The V.52 Ber Test Pattern Generator
(using one operator). The following example requires two operators–one to initiate and monitor the test at the local Model 2500RC Series, and one at the remote Model 2500RC Series. To use the V.52 BER test by itself, both operators should simultaneously follow these steps: Locate the “511/511E”... -
Page 20: Appendix Aspecifications
After dialing the number, the Model 2500RC Series will display the message, “Dialing” and then display each number as it is dialed. The Model 2500RC Series will then prompt the user to wait while the connection is made. One of the following messages will then be displayed to indicate the success or failure or the connection: •... -
Page 21: Appendix Bcable Recommendations
APPENDIX B CABLE RECOMMENDATIONS The Patton Model 2500RC Series operates at frequencies of 20kHz or less and has been performance tested by Patton technicians using twisted-pair cable with the following characteristics: Wire Gauge Capacitance 19 AWG 83nf/mi or 15.72 pf/ft. - Page 22 APPENDIX D INTERFACE PIN ASSIGNMENT DDS INTERFACE The DDS Interface is an RJ-48S modular jack. Pin # Signal no connection no connection no connection no connection M/34 CONNECTOR, TERMINAL INTERFACE Pin # Signal SGND (Signal Ground) LL (Local Loop) TM (Test Mode) RL (Remote Loop) XTC/ (APPENDIX D - Continued)
- Page 23 APPENDIX E TRANSMITTER CLOCK SOURCE DURING TEST LOOPS Analog Originating Clock Mode Normal Loop Remote Loop Internal External Network RC = Received Clock Copyright © Patton Electronics Company All Rights Reserved Dear Valued Customer, Receiving appreciate your business. I trust that you find this user manual helpful. Remote Loop products in the world including CSU/DSU's, network termination units, powered and self-powered short range modems, fiber optic modems, interface...
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