Download
Share
Print this page
  1. Manuals
  2. Brands
  3. DCB Manuals
  4. Multiplexer
  5. SPL Multidrop
  6. Manual

DCB SPL Multidrop Manual

Hide thumbs

Advertisement

Quick Links

Download this manual
SPL Multidrop

TABLE OF CONTENTS

SECTION 1 - DESCRIPTION....................................................................... 2
SECTION 2 - SPECIFICATIONS ................................................................. 3
SECTION 3 - INSTALLATION..................................................................... 5
SECTION 4 - CONTROLS AND INDICATORS........................................... 7
SECTION 5 - NETWORK MANAGEMENT PORT .................................... 13
SECTION 6 - INTERFACE SIGNALS AND CABLING.............................. 21
.
SECTION 7 - TROUBLESHOOTING......................................................... 27
SECTION 8 - WARRANTY......................................................................... 30
Data Comm for Business, Inc.
PO Box 6329
Champaign, IL 61826-6329
August 7, 2002
217-897-6600
Firmware Version: 16.51 / 32.51
www.dcbnet.com
8500025

Advertisement

loading
Need help?

Need help?

Do you have a question about the SPL Multidrop and is the answer not in the manual?

Questions and answers

Related Manuals for DCB SPL Multidrop

Summary of Contents for DCB SPL Multidrop

  • Page 1: Table Of Contents

    SPL Multidrop TABLE OF CONTENTS SECTION 1 - DESCRIPTION............... 2 SECTION 2 - SPECIFICATIONS ..............3 SECTION 3 - INSTALLATION..............5 SECTION 4 - CONTROLS AND INDICATORS........... 7 SECTION 5 - NETWORK MANAGEMENT PORT ........13 SECTION 6 - INTERFACE SIGNALS AND CABLING......21 SECTION 7 - TROUBLESHOOTING............

  • Page 2: Section 1 - Description

    DESCRIPTION The DCB SPL MultiDrop Remote (SPLD) multiplexer is used in conjunction with the SRX MultiDrop Host. The SPLD is a DCB SPL hardware platform with optional MultiDrop firmware that allows it to operate on multidrop analog or digital phone lines.

  • Page 3: Section 2 - Specifications

    SPECIFICATIONS Product 2.1.1 Data Ports Port Speeds Asynchronous only 300, 1200, 1800, 2400, 4800, 9600, 19,200 or 38,400 bps Data Format 10 bits/character, 1 start, 1 stop, 8 data (including parity) Interface RS-232D, implemented in DB-25 female connectors 2.1.2 Composite Port Speed Synchronous, to 64 Kbps Asynchronous at 1200, 2400, 4800, 9600, 19,200 or 38,400 bps...
  • Page 4 Network Management Port Commands Help Network Help Port Show Port Configuration Show ID Show Map Show Status Show Network Configuration Change Port Configuration Change Delay Timeout Change ID Change Network Configuration Activity Counts Drop Activity Zero Activity Counters Flow Control Test Tools Capture Port Copy Command...

  • Page 5: Section 3 - Installation

    INSTALLATION Unpacking The following is included with each SPLD multiplexer • Multiplexer and external power supply • Cable for connecting a modem or DSU/CSU • Manual • Information regarding warranty, maintenance contracts and repair Location Place the multiplexer in a clear area where you can reach the front panel for setup and the rear panel to connect the cables.
  • Page 6 Installation Summary 1. Set the proper Drop Address into the 6-position DIP switch. 2. Configure the ports for correct speed, parity and flow control. 3. Set the modem or DSU/CSU for controlled carrier operation. 4. Connect the multiplexer Network port to the modem or DSU/CSU using the cable supplied.

  • Page 7: Section 4 - Controls And Indicators

    CONTROLS AND INDICATORS Switches The front panel of the SPLD is held in place with magnets. It can be easily removed by pulling on the small handles provided. Behind this panel are one or more circuit boards. Each circuit board has several banks of switches called DIP switches.
  • Page 8 4.1.1.2 Drop Address For a multidrop network to work properly, each SPLD multiplexer must have a unique drop address. The Drop Address is set using positions 2-6 of the Network switch. Firmware version 16.xx supports 16 drops (0 thru 15). Version 32.xx supports 32 drops. Network Switch Position Drop # Down...
  • Page 9 4.1.2 Port Configuration Ports are configured using the 8-position DIP switches. See Figure 1. Position 1 is not used. Position 2 sets port loopback for troubleshooting. Positions 3 thru 5 set flow control and parity. Positions 6 thru 8 set speed. 4.1.2.1 Port Loopback Individual ports may be put in loopback using position 2 of the port configuration switch.
  • Page 10 4.1.2.3 Port Speed Port speed is set using positions 6, 7 and 8 of the port DIP switch. The port speed must match the speed of the attached DTE device. The factory default is 9600. Port Switch Position Speed Down 38400 BPS 19200 BPS Down...
  • Page 11 4.1.4 Reset The reset switch is a small pushbutton switch located on the bottom circuit board between the Power and Transmit Condition indicators (Figure 2). Pressing this switch will reset the multiplexer. If this fails to clear a problem, disconnect power from the unit for five seconds and then reconnect.
  • Page 12 Besides these five main indicators there are eight smaller indicators located behind the front panel directly to the left of the network switch. Transmit & Receive Data Port 2 Transmit & Receive Data Port 1 1 2 3 4 5 6 Port 1 Setup active Buffer Overflow Port Loopback active...

  • Page 13: Section 5 - Network Management Port

    NETWORK MANAGEMENT PORT Introduction The Network Management port (NMP) provides access to vital statistics and troubleshooting tools. By connecting a terminal or modem to the NMP a vast array of information is at your finger tips. Connections and Setup Connection to the NMP is made either through a port on the rear of the multiplexer or by using Port 1 Setup.
  • Page 14 Commands 5.4.1 Help (H or ?) COMMAND LOCAL REMOTE PARAGRAPH Help: Network 5.4.2 Port 5.4.3 Show: Port Config 5.4.4 5.4.8 5.4.10 Status 5.4.11 Network Config 5.4.12 Change: Port Config 5.4.5 & 6 Delay Timeout 5.4.7 5.4.9 Network Config 5.4.13 Activity Counts 5.4.14 Drop Activity 5.4.15...
  • Page 15 NOTE Several commands allow port numbers or port number ranges to be included on the command line. When port numbers are included, the syntax is as follows: (Command)1 Port 1 (Command)1,2,6 Ports 1, 2 & 6 (Command)1 2 6 Ports 1, 2 & 6 (Command)2-6 Ports 2 thru 6 (Command)1,5-8...
  • Page 16 5.4.9 Change ID The Change ID (ID) command allows you to set/change both multiplexer and port identifiers. Port IDs are entered in pairs, first drop, then host, referenced to the local (Drop) port number. Pressing <Enter> with no entry will leave the ID unchanged. 5.4.10 Show Map The Show Map (SM) command shows the mapping and IDs of all drop ports.
  • Page 17 This is handy for repeating screens of constantly changing data. 5.4.19 Disconnect NMP The BYE command toggles the CTS output from the Network Management port. This is used to disconnect equipment such as dial-up modems or the DCB Access Switch.
  • Page 18 5.4.20 Test Tools The Test Tools (TT) menu summarizes the test and troubleshooting commands. These commands are listed separately to reduce the clutter in the main help list, but are always active at the command prompt. COMMAND LOCAL REMOTE PARAGRAPH Capture Port RCA# 5.4.21 &...
  • Page 19 5.4.23 Copy Command The Copy Command (CC#) is used for training. This command is used when the instructor is at the host site and the trainee is at the remote. The command is followed by a port number which must be the host port that is mapped to the remote port used by the trainee.

  • Page 20: Section 6 - Interface Signals And Cabling

    5.4.28 Remote Test Message The Remote Test Message (RTM#) command sends a QBF test message to a remote (Host) port. The message continues until any key is pressed on the network management port terminal. A local port number must be included on the command line. If the port is not mapped, an error message is returned.
  • Page 21 Connector Location and Pin Reference Port 11 Port 14 Exec Port (NMP) Port 2 Port 1 Network Figure 4 Connector Location - Rear View Pin 1 Pin1 Pin 1 Figure 5 Connector Pin Reference...
  • Page 22 Port Interface 6.2.1 Network Port (DB-25P) Signal In/Out Frame Ground Transmit Data Receive Data Request to Send Clear to Send Data Set Ready Signal Ground Data Carrier Detect Transmit Clock Receive Clock Data Terminal Ready 6.2.2 Data Ports (DB-25S) Signal In/Out Frame Ground Transmit Data...
  • Page 23 Cables 6.3.1 Network Port to Modem A 25 conductor cable is supplied with the SPL multiplexer for this purpose. If a longer cable is needed, a minimum of 10 conductors are required. Modem DB-25S DB-25P 6.3.2 Data Ports To a TERMINAL, PRINTER or other DTE Device DTE Device DB-25P DB-25...
  • Page 24 6.3.2 Data Ports, continued To a PC using terminal emulation Computer DB-25P DB-25S DE-9S To a MODEM or other DCE Device Modem DB-25P DB-25 (flow control) (flow control)
  • Page 25 6.3.3 Network Management Port To a TERMINAL Terminal DE-9P DB-25P To a PC using terminal emulation Computer DE-9P DE-9S DB-25S To a dial-up MODEM for remote access Modem DE-9P DB-25P...
  • Page 26 Signal Paths through Multiplexers The following diagram shows the signal flow between data ports of an SRX Host multiplexer and an SPL Drop multiplexer. SRX Host Port SPL Drop Port BUSY BUSY Transmit Data to Receive Data is the normal required path for data flow.

  • Page 27: Section 7 - Troubleshooting

    TROUBLESHOOTING General Approach When troubleshooting problems, a rational plan can save you many hours of frustration. The following is a brief outline of standard troubleshooting procedures. 1. Gather the facts to determine the exact nature of the problem. 2. Draw a picture of the system showing the equipment at both the host and remote ends and the phone lines or in-house wiring.
  • Page 28 Installation Troubleshooting, Modems or DSUs First, set up the DSUs without connecting the multiplexers. The host DSU should be set to constant carrier, also called forced Request To Send, or constant RTS. The remote DSUs must be set to Request To Send controlled by the terminal.
  • Page 29 If the terminal gets “garbage” data, check the speeds of the host and remote multiplexers, the terminal and the computer ports to make sure they match. Blocks of data are lost most often when data is sent to a printer, or a lot of data is being displayed on a terminal.

  • Page 30: Section 8 - Warranty

    Returned Material Authorization (RMA) number. To receive an RMA number, call (217) 897-6600 between the hours of 8 AM and 5 PM central time. Equipment must be shipped prepaid to DCB and will be returned at DCB's expense. Ship returned items to:...