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Patton electronics 1140RC User Manual

Rs-232 fiber optic rack card modem w/ v.54 & v.52 diagnostics
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C E R T I F I E D
An ISO-9001
Certified Company
USER
MANUAL
MODEL 1140RC
RS-232 Fiber Optic
Rack Card Modem
w/ V.54 & V.52 Diagnostics
Part #07M1140RC
Doc #018031U,
Rev. D
Revised 1/22/08
SALES OFFICE
(301) 975-1000
TECHNICAL SUPPORT
(301) 975-1007
http://www.patton.com

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  • Page 1 USER MANUAL MODEL 1140RC RS-232 Fiber Optic Rack Card Modem w/ V.54 & V.52 Diagnostics Part #07M1140RC SALES OFFICE Doc #018031U, (301) 975-1000 Rev. D TECHNICAL SUPPORT Revised 1/22/08 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

    The Model 1140RC has been tested and found to comply with the limits for a Class A computing device in accordance...
  • Page 3 NOTE: Packages received without an RMA number will not be accepted. Patton Electronics' technical staff is also available to answer any questions that might arise concerning the installation or use of your Model 1140RC. Technical Service hours: 8AM to 5PM EST, Monday through Friday.

  • Page 4: General Information

    “Controlled by RTS”. Five pairs of bi-level LED indicators monitor TD, RD, RTS, CD, test and error. A single LED monitors power. The Model 1140RC is designed to mount in Patton’s 2U high 19” rack chassis. This 16-card chassis has a switchable 120/240 volt power supply and mounts cards in a mid-plane architecture: The front “brains”...

  • Page 5: Front Card Configuration

    3.1 FRONT CARD CONFIGURATION The Model 1140RC front card has two sets of eight switches (S1 & S2), which are mounted on the PC board (Figure 1, below). These configuration switches allow you to configure the Model 1140RC for a wide range of applications.

  • Page 6: Configuration Switch Set "S1"

    Async./Sync. Async. S1-8 Carrier Control Constantly On S1-1 through S1-4: Data Rate Setting Switches S1-1 through S1-4 are set in combination to determine the asynchronous and synchronous data rate for the Model 1140RC. S1-1 S1-2 S1-3 S1-4 Setting 1.2 Kbps 1.8 Kbps...
  • Page 7 S1-5 S1-6 Setting Internal transmit clock Receive recover clock External transmit clock S1-7: Asynchronous/Synchronous Mode The setting for switch S1-7 determines whether the Model 1140RC is in asynchronous or synchronous operating mode. S1-7 Setting Asynchronous Synchronous S1-8: Carrier Control Method The setting for switch S1-8 determines whether the carrier is “constantly on”...

  • Page 8: Configuration Switch Set "S2"

    11 bits S2-3: Extended Signaling Rate The setting for switch S2-3 determines the range of variability the Model 1140RC “looks for” in asynchronous data rates (i.e., the actual variance from a given frequency level the Model 1140RC will tolerate). S2-3 Setting -2.5% to +1%...

  • Page 9: Rear Card Configuration

    S2-4 and S2-5: RTS/CTS Delay The combined settings for switches S2-4 and S2-5 determine the amount of delay between the time the Model 1140RC “sees” RTS and when it sends CTS. Options are no delay, 7 ms and 53 ms.
  • Page 10 3.2.1 HOW THE JUMPER WORKS Figure 4 (below) shows the 3-pin jumpers used on the rear card. The strap enables or disables a particular function depending upon whether it straddles pins 1 and 2, or pins 2 and 3. Figure 4. Orientation of interface card strap DTE Shield (Pin 1) &...

  • Page 11: Installation

    4.0 INSTALLATION This section describes the functions of the Model 1000R16 rack chassis, tells how to install front and rear Model 1140RC cards into the chassis, and provides instructions for connecting the interface cables. 4.1 THE MODEL 1000R16 RACK CHASSIS The 1000R16 Rack Chassis (Figure 5, below) has sixteen short range modem card slots, plus its own power supply.
  • Page 12 4.2 INSTALLING THE MODEL 1140RC INTO THE CHASSIS The Model 1140RC is comprised of a front card and a rear card. The two cards meet inside the rack chassis and plug into each other via mating 50 pin card edge connectors. Use the following steps as a...
  • Page 13 Figure 6. Model 1140RC interface card options 4.3.1 RS-232 CONNECTION The RS-232 port on the rear card of the Model 1140RC is wired as a DCE, and uses a female HD-26 connector. The HD-26 is an alternate connector according to the EIA RS-232E specification, and the pin-out is the same as a standard DB-25.

  • Page 14: Fiber Connections

    4.3.2 FIBER CONNECTIONS The Model 1140RC is designed to work with the self-powered Model 1140, or with another Model 1140RC. In either case, you will need one unit at each end of a dual fiber cable. This cable connects to the Model 1140RC using either ST or SMA connectors.

  • Page 15: Operation

    The green “RTS” and “CD” indicators glow solid to show the control signal is on. The red “RTS” and “CD” indicators glow solid to show the control signal is off. When the 1140RC is connected to a DTE, RTS will glow green for an incoming signal on RS-232 pin 4. CD will glow green for an incoming signal from the line, and an outgoing signal on RS-232 pin 8.

  • Page 16: Test Modes

    The Local Analog Loopback (LAL) test checks the operation of the local Model 1140RC, and is performed separately on each unit. Any data sent to the local Model 1140RC 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 17: Remote Digital Loopback (Rdl)

    Locate the lower of the two toggle switches on the front panel of the 1140RC and move it to the right. This will activate the V.52 BER test mode and inject a “511” test pattern into the remote loop.
  • Page 18 Locate the lower of the two toggle switches on the front panel of the Model 1140RC and move it to the right. This will activate the V.52 BER test mode and transmit a “511” test pattern to the other unit. If any errors are present, the receiving modem’s red “Error”...

  • Page 19: Appendix Aspecifications

    APPENDIX A SPECIFICATIONS Transmission Line: Dual optical cable Transmission Mode: Asynchronous, half or full duplex, point-to-point Interfaces: EIA RS-232, CCITT V.24 Data Rates: 0 - 57.6 Kbps Distance: 2 miles over continuous fiber RTS/CTS Delay: Switch-selectable: No delay, 7.0 mS, 53 mS Receiver Sensitivity: -45 dBm Coupled Power Output: -30 to -36 dBm Optic Wavelength: 850 nm...
  • Page 20 APPENDIX B FACTORY REPLACEMENT PARTS The Patton Model 1140RC rack system features interchangeable rear half cards, power cords/fuses for international various operating environments and other user-replaceable parts. Model numbers and descriptions for these parts are listed below: Patton Model # Description 1000RPEM......120/240V Rear Power Entry Module...

  • Page 21: Pin Configurations

    APPENDIX C PIN CONFIGURATIONS UNIVERSAL D-26 INTERFACE (DCE WIRING) Digital Loop (RDL) -21 8- (CD) Carrier Detect Data Terminal Ready (DTR) -20 7- (SG) Signal Ground 6- (DSR) Data Set Ready Analog Loop (LAL) -18 5- (CTS) Clear to Send 4- (RTS) Request to Send 3- (RD) Receive Data 2- (TD) Transmit Data...

  • Page 22: Block Diagram

    APPENDIX D BLOCK DIAGRAM Copyright © Patton Electronics Company All Rights Reserved...
  • Page 24 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.

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