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Related Manuals for Patton electronics 2500RC Series
Summary of Contents for Patton electronics 2500RC Series
- Page 1 USER MANUAL MODEL 2500RC Series Models 2500RC, 2510RC and 2520RC: All-Rate CSU/DSU Rack Mount Card SALES OFFICE Part# 07M2500RC--D Doc# 099011U, Rev. E (301) 975-1000 Revised 1/23/08 TECHNICAL SUPPORT C E R T I F I E D (301) 975-1007 An ISO-9001 http://www.patton.com...
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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: Warranty Information
1.0 WARRANTY INFORMATION Patton Electronics warrants all Model 2500RC Series components to be free from defects, and will—at our option—repair or replace the product should it fail within one year from the first date of shipment.This warranty is limited to defects in workmanship or materials, and does not cover customer damage, abuse, or unauthorized modification. -
Page 4: Fcc Information
1.2 FCC INFORMATION The Model 2500 Series has been tested and registered in compliance with the specifications in Part 68 of the FCC rules. A label on the equipment bears the FCC registration number. You may be requested to provide this information to your telephone company. Your telephone company may make changes in its facilities, equipment, operations or procedures that could affect the proper operation of the Model 2500 Series. - Page 5 1.4 SERVICE All warranty and nonwarranty 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: (301) 975-1007;...
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Page 6: 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 7: Supported Applications
2.3 SUPPORTED APPLICATIONS The Model 2500RC Series includes three units: the Model 2500RC All-Rate CSU/DSU, the Model 2510RC Switched 56 CSU/DSU and the Model 2520RC All-Rate/Switched 56 CSU/DSU. Depending upon the unit selected, the Mode 2500RC Series supports three distinct modes of operation. -
Page 8: Configuration
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 9 3.1.1 Switch Set “S1” The configuration switches on switch set S1 allow you to specify Line Rate, Circuit Assurance, RTS, Character Length, Data Format and DSR Loop Status. The table below summarizes S1 switch settings, including the factory defaults. Following the table are descriptions of each switch setting.
- Page 10 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 11 Switch S1-7: Data Format The data format selection controls whether an async-to-sync conversion is performed. S1-7 Data Format Asynchronous Synchronous Switch S1-8: DSR System Status The behavior of the DSR output during performance of a local loop can be controlled. S1-8 Loop Status Description...
- Page 12 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.
- Page 13 Normal Extended 3.1.3 Setting the Reversible Interface Driver Board The Model 2500RC Series supports both RS-232 and V.35 electrical interfaces for the terminal connection port. Which electrical interface is active is determined by the orientation of the small reversible daughter board on the front card (see Figure 3, below). The daughter board is clearly marked “THIS SIDE UP FOR RS-232”...
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Page 14: 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 15 (see Section 3.1.4), and press [RETURN]. (Note: Do not use the universal address [99]. Configure only one card at a time.) The Model 2500RC Series Main Menu should then display on the terminal screen (see below).
- Page 16 3.2.3 Verifying Software Switch Control In order to use software switches for configuration, it is necessary to disable the hardware switch settings. To do this, use the following procedure (Note: If this procedure is omitted, your software configurations will be overridden by the hardware switch settings): On the Main Menu (opposite page), choose item 1, “Select Hardware/Software Switch Control”.
- Page 17 For each screen described below, selecting a numbered option and pressing [RETURN] stores that option setting and returns you to the Software Switch Menu (Note: All lettered options must be entered in lower case) Line Rate Choosing option 1 in the Software Switch Menu takes you to the Line Rate Menu (below).
- Page 18 Choosing option 4 in the Software Switch Menu takes you to the Character Length Menu (below). In asynchronous data format, the Model 2500RC Series supports 10-bit and 11-bit character lengths. Set this option according to the characteristics of the data being...
- Page 19 The extra stop bit reduces the DTE’s effective data rate to allow synchronization with the 56 kbps line speed. Set the Model 2500RC Series for two stop bits by selecting “11 bit character length” in the Character Length Menu.
- Page 20 DSR Status During Local Loopback Choosing option 6 in the Software Switch Menu takes you to the DSR Loop Status Menu (below). This option controls the behavior of the DSR output during local loopback. To force DSR high (ON) during local loopback, enable this option.
- Page 21 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 22 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.
- Page 23 RTS/CTS Delay Choosing option “b “ in the Software Switch Menu takes you to the RTS/CTS Delay Menu (below). This option lets you set the RTS/CTS turn-on delay to Normal or Extended. The delay interval decreases as the line rate increases.
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Page 24: 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 25 3.3.1 Model 1000RCM12548 Strap Settings Figure 7 shows strap locations for the Model 1000RMC12548 (DB-25/RJ-48S) rear cards. These straps determine various grounding characteristics for the terminal interface and twisted pair lines. (peg 1 on top) (NOT USED) (peg 1 on left) Figure 7.
- Page 26 SGND & FRGND (JB4) In the connected position, this strap links DB-25 pin 7 (Signal Ground) and frame ground. In the open position, pin 1 is “lifted” from frame ground. Position 1&2 = SGND (Pin 7) and FRGND Connected Position 2&3 = SGND (Pin 7) and FRGND Not Connected 3.3.2 Model 1000RCM13448 Strap Settings Figure 8 shows the strap location for the Model 1000RCM13448 (M/34/RJ-48S) rear card.
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Page 27: Installation
4.0 INSTALLATION 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. 4.1 THE MODEL 1000R16 RACK CHASSIS The Model 1000R16 Rack Chassis (Figure 9, below) has sixteen short range modem card slots, plus its own power supply. -
Page 28: 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 29: Operation
The Model 2500RC Series is equipped with nine LED indicators that monitor the status of communication. Figure 12 (below) shows the location of the LEDs on the Model 2500RC Series front panel. Note also the location of the test mode switches and RS-232 control port (used in Switched 56 dialing as well as software configuration). -
Page 30: 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 31 5.2.1 Displaying Configuration Settings To display the current settings of the hardware and /or software switches, go to the Main Menu and select item 2, “Read Configuration”. This will take you to the Read Configuration Menu (below). In the Read Configuration Menu, you may select item 1 to read the hardware switch configuration or item 2 to read the software switch configuration.
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Page 32: 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 33 Loop Menu (see below). To activate LAL, select item 1. LAL Test Procedure Once LAL is activated, the Model 2500RC Series transmit output is connected to its own receiver. The “Test” LED should be lit. Follow these steps to complete the test: Verify that the data terminal equipment is operating properly and can be used for a test.
- Page 34 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...
- Page 35 (bit error rate) test on the system, using BER testers on both ends. If the BER test equipment indicates a fault and the Local Analog Loopback test was successful for both Model 2500RC Series units, you may have a problem with the line between the CSU/DSUs. You should inspect the line for proper connections.
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Page 36: 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 37: Switched 56 Dialing Commands (Models 2510Rc & 2520Rc)
Store Phone Number (Enable DTR Dialing) Selecting item 1 in the Dial Menu lets you activate the Model 2500RC Series’ “DTR Dialing” feature by storing a phone number in the unit’s non-volatile memory. The Model 2500RC Series automatically dials this number when the DTE raises the DTR lead. When you issue... - Page 38 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: •...
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Page 39: Appendix Aspecifications
511/511E BER test, TELCO CSU and DSU loops Connectors: DB-25 and M/34 Power Supply: 115V or 230V AC Dimensions: 7.3” x 6.6” x 1.6” Model 2500RC Series Distance Table (miles) Wire Gauge Data Rate 64 Kbps 56 Kbps 19.2 Kbps 9600 bps 10.4... -
Page 40: 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 Resistance 19 AWG 83nf/mi or 15.72 pf/ft. -
Page 41: Appendix C - Factory Replacement Parts And Accessories
APPENDIX C FACTORY REPLACEMENT PARTS AND ACCESSORIES Patton Model # Description 10-2500RC ......DDS Cable, RJ48 - RJ48, 6 foot 10-561S......Control Port Cable, EIA-561, 6ft, shielded 12M-561 ......Adapter, EIA-561 to DB-25 Male 12F-561 ......Adapter, EIA-561 to DB-25 Female 082R2......Fuse 5x20mm, 200mA, 250V, Time-lag Little Fuse P/N 239.200 1000RPEM ......120/240V Rear Power Entry Module 1000RPSM-2 ....120/240V Front Power Supply Module... -
Page 42: Appendix D - Interface Pin Assignments
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/... - Page 43 (APPENDIX D - Continued) DB-25 CONNECTOR, TERMINAL INTERFACE Pin # Signal Frame Ground SGND (Signal Ground) LL (Local Loop) RL (Remote Loop) TM (Test Mode) CONTROL PORT INTERFACE 8 Position modular connector compliant with EIA-561. Pin # Signal Signal Ground RD (Output) TD (Input)
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Page 44: Appendix Etransmitter Clock Source During Test Loops
APPENDIX E TRANSMITTER CLOCK SOURCE DURING TEST LOOPS Analog Originating Receiving Clock Mode Normal Loop Remote Loop Remote Loop Internal External Network RC = Received Clock Copyright © Patton Electronics Company All Rights Reserved... - Page 48 Dear Valued Customer, Thank you for purchasing Patton Electronics products! We do appreciate your business. I trust that you find this user manual helpful. We manufacture one of the widest selections of data communications products in the world including CSU/DSU's, network termination units, powered and self-powered short range modems, fiber optic modems, interface converters, baluns, electronic data switches, data-line surge protectors, multiplexers, transceivers, hubs, print servers and much more.