Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Related Manuals for Patton electronics 2450
Summary of Contents for Patton electronics 2450
- Page 1 USER MANUAL MODEL 2450 56/64 Kbps, 4-Wire DDS & Clear Channel CSU/DSU SALES OFFICE Part# 07M2450-B Doc# 099051U, (301) 975-1000 Rev. C TECHNICAL SUPPORT Revised 1/23/08 C E R T I F I E D (301) 975-1007 An ISO-9001 http://www.patton.com...
-
Page 2: Radio And Tv Interference
However, there is no guarantee that interference will not occur in a particular installation. If the Model 2450 does cause interference to radio or television reception, which can be... -
Page 3: Service Information
The telephone company may decide to temporarily discontinue your service if they believe your Model 2450 Series may cause harm to the telephone network. Whenever possible, they will contact you in advance. If you elect to do so, you have the right to file a complaint with the FCC. -
Page 4: General Information
• Ultra-compact enclosure fits in tight spaces 2.2 DESCRIPTION The Model 2450 DDS & Clear Channel CSU/DSU is a standalone , AC powered CSU/DSU designed for 4-wire, full duplex communications over dedicated twisted-pair. Synchronous data rates of 56 and 64 Kbps are supported, at distances up to 3.4 miles. -
Page 5: Configuration Switches
The Model 2450 uses a mini DIP switch package that allows configuration to a wide range of applications. This DIP switch is externally accessible from the underside of the Model 2450 (see Figure 1, below), therefore you do not need to open the Model 2450's case during configuration. REAR FRONT Figure 1. - Page 6 DTE Loop Control Disabled S1-8 Receive RDL Enabled Switches S1-1 and S1-2: Clock Mode The setting for switches S1-1 and S1-2 determines the transmitter clocking mode for the Model 2450. S1-1 S1-2 Clock Mode Description External (DTE) Transmit clock derived...
- Page 7 Switch S1-3: Circuit Assurance On dedicated circuits, 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 S1-3 Assurance...
- Page 8 Switch S1-6: Front Panel Switch Enable/Disable Switch S1-6 determines whether the front panel switches may be used to perform diagnostic functions. S1-6 Activation Description Enabled Front panel switches may be used to activate/terminate diagnostics Disabled Front panel switches will have no effect on operation of the unit Switch S1-7: DTE Loop Request Line Enable/Disable The setting for switch S1-7 determines whether the DTE signals...
-
Page 9: Installation
DTE (terminal) interface, and the AC power supply. 4.1 LINE (NETWORK) CONNECTION The RJ-48S port on a Model 2450 CSU/DSU is prewired for a standard TELCO wiring environment (see Figure 4, below). Connect this port to the RJ-48S jack provided by your digital service carrier using a straight through twisted pair cable between 19 and 26 AWG. -
Page 10: Ac Power Connection
Appendix D. 4.3 AC POWER CONNECTION Power is supplied to the Model 2450 by a 10 VAC, 1 A wall mount transformer. This transformer connects to the Model 2450 by means of a cannon jack on the rear panel. The Model 2450 is powered-up as soon as it is plugged into an AC outlet–there is no power switch. -
Page 11: Operation
5.1 LED STATUS MONITORS The Model 2450 features six front panel status LEDs that indicate the condition of the unit and communication link. Figure 6 (below) shows the front panel location of each LED. Following Figure 6 is a description of each LED's function. -
Page 12: Test Modes
The Local Analog Loopback (LAL) test checks the operation of the local Model 2450, and is performed separately on each unit. Any data sent to the local Model 2450 in this test mode will be echoed (returned) back to the user device. For example, characters typed on the keyboard of a terminal will appear on the terminal screen. - Page 13 Note: The above V.52 BER tests can be used independently of the V.54 loopback tests. This requires two operators: one to initiate and monitor the tests at the local Model 2450, and one to do the same at the remote Model 2450. In this case, the test pattern sent by each Model 2450 will not be looped back, but will be transmitted down the line to the other Model 2450.
- Page 14 APPENDIX A PATTON MODEL 2450 SPECIFICATIONS DDS Type: Dedicated Transmission Format: Synchronous, full duplex Maximum Operating Distance: 18000 feet (3.4 miles) over 26 AWG twisted pair DTE Interface: RS-232 (DB-25 female), RS-422/530 (DB- 25 female), V.35 (M/34 female or DB-25...
- Page 15 APPENDIX B CABLE RECOMMENDATIONS The following statements apply to the Model 2450 when used as a short range modem over private twisted pair: All Patton Electronics Company Short Range Modems (SRMs) are tested to the distances published in our Catalogs and Specification...
-
Page 16: Appendix Cfactory Replacement Parts And Accessories
APPENDIX C FACTORY REPLACEMENT PARTS AND ACCESSORIES Patton Model # Description 2450/A ......56/64 kbps CSU/DSU (RS-232. DB-25 female connector) 2450/B ......56/64 kbps CSU/DSU (RS-422/530, DB-25 female connector) 2450/C......56/64 kbps CSU/DSU (V.35, M/34 female connector) 2450/E ......56/64 kbps CSU/DSU (V.35, DB-25 female connector) 10-2500 ......DDS Cable, RJ48S - RJ48S, 6 foot... - Page 17 The DDS/Clear Channel Interface is an RJ-48S modular jack. Pin # Signal no connection no connection no connection no connection MODEL 2450/C M/34 CONNECTOR (V.35), TERMINAL INTERFACE Pin # Signal Frame Ground SGND (Signal Ground) LL (Local Loop) TM (Test Mode)
- Page 18 (APPENDIX D - Continued) MODEL 2450/A DB-25 CONNECTOR (RS-232/V.24), TERMINAL INTERFACE Pin # Signal Frame Ground SGND (Signal Ground) LL (Local Loop) RL (Remote Loop) TM (Test Mode) MODEL 2450/B DB-25 CONNECTOR (RS-422/530), TERMINAL INTERFACE Pin # Signal Frame Ground...
- Page 19 (APPENDIX D - Continued) MODEL 2450/E DB-25 CONNECTOR (V.35), TERMINAL INTERFACE Pin # Signal Frame Ground Transmit Data A Receive Data A SGND (Signal Ground) Receive Clock B External Clock B Transmit Clock B Transmit Data B Transmit Clock A...
- Page 20 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.