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Summary of Contents for Patton electronics 1008
- Page 1 Doc# 047041U, Rev. E Revised 1/22/08 C E R T I F I E D An ISO-9001 Certified Company USER MANUAL MODEL 1008 Ultra-Miniature, High Speed, Multipoint DB-9 Short Range Modem SALES OFFICE (301) 975-1000 TECHNICAL SUPPORT (301) 975-1007 http://www.patton.com...
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Page 2: Radio And Tv Interference
However, there is no guarantee that interference will not occur in a particular installation. If the Model 1008 does cause interference to radio or television reception, which can be... - Page 3 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 1008. Technical Service hours: 8AM to 5PM EST, Monday through Friday.
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Page 4: General Information
Distances up to 15.0 miles are attainable at lower data rates (1.2 Kbps, 19 AWG twisted pair). The Model 1008 can handle up to 50 terminal drops in a multipoint polling environment. For RS-485 and serial printer applications requiring hardware handshaking, the Model 1008 passes one control signal in each direction. -
Page 5: Accessing The Dip Switches
1, below). DIP switch S2 is located on the top of the daughter board (see Figure 2, below). Switch S1 Figure 1. Underside of Model 1008 main PC board, showing the location of DIP switch S1. Switch S2 Figure 2. Top of Model 1008 daughter board, showing the location of DIP switch S2. - Page 6 To access the Model 1008’s internal PC boards, insert a small flat- blade screwdriver between the connector and the lip of the case and twist gently as shown in Figure 3 (below). Figure 3. Opening the Model 1008’s plastic case with a small screwdriver Both DIP switch S1 and S2 are marked with individual switch numbers 1 thru 4.
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Page 7: Dip Switch S1 Settings
Low (120 Ohm) High (16 kOhm typical) S1-2 and S1-3: 2-wire/4-wire Modes Switches S1-2 and S1-3 are set together to determine whether the Model 1008 is in 2-wire or 4-wire operating mode. Note: 2-wire mode is half-duplex only. S1-2 S1-3... -
Page 8: Dip Switch S2 Settings
Controlled by RTS Constantly ON S2-2: RTS/CTS Delay The setting for switch S2-2 determines the amount of delay between the time the Model 1008 “sees” RTS and when it sends CTS. Note: RTS/CTS Delay setting should be based upon transmission timing. S2-2... -
Page 9: Typical Applications
3.2 TYPICAL APPLICATIONS The Model 1008 is commonly used in five types of applications: 4-wire/full duplex/point-to-point, 4-wire/half duplex/point-to-point, 2-wire/half duplex/point-to-point, 4-wire/multipoint and 2-wire/multipoint. The switch settings generally needed to configure the Model 1008 for these applications are shown in the table below. Note: Do not change switch settings until you have carefully read Section 3.1. -
Page 10: Installation
If your application requires you to connect one or two pairs of bare wires to the Model 1008, you will need to open the case to access the terminal blocks. The following instructions will tell you how to open the case, connect the bare wires to the terminal blocks and fasten the strain relief collar in place so the wires won't pull loose. -
Page 11: Xmt
Note: If there is a shield around the telephone cable, it may be connected to “G” on the terminal block. To avoid ground loops, we recommend connecting the shield at the computer end only. A ground wire is not necessary for proper operation of the Model 1008. (Continued) - Page 12 7. When you finish connecting the wires to the terminal block, the assembly should resemble the diagram below: 8. Place the 2 halves of the strain relief assembly on either side of the telephone wire and press together very lightly. Slide the assembly so that it is about 2 inches from the terminal posts and press together firmly.
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Page 13: Table Of Contents
This completes the cable installation process. 4.1.2 TWISTED PAIR CONNECTION USING RJ-11 OR RJ-45 The RJ-11 and RJ-45 connectors on the Model 1008’s twisted pair interface are pre-wired for a standard TELCO wiring environment. The signal/pin relationships are shown below:... -
Page 14: Rcv
When connecting two Model 1008s, it is necessary to use a crossover cable. The diagrams below show how a crossover cable should be constructed for the following environments: 4-wire RJ-11, 4-wire RJ-45, 2-wire RJ-11 or 2-wire RJ-45. SIGNAL † RCV- XMT+ XMT- RCV+... -
Page 15: Rcv
HOST FIRST SLAVE XMT+ RCV+ XMT- RCV- RCV+ XMT+ RCV- XMT- Figure 5. Star wiring for Model 1008 host and slaves SECOND SLAVE RCV+ RCV- XMT+ XMT-... -
Page 16: Xmt
The Model 1008 is designed to plug directly into the DB-9 serial port of an EIA/TIA-574 DTE device (PC, laptop, host). If you must use a cable to connect the Model 1008 to the DTE device, make sure that it FIRST SLAVE... - Page 17 6 ft or less. The DB-9 connector on the Model 1008 is wired according to the EIA/TIA-574 Standard, as shown below: Note: The Model 1008 is configured as a DCE (Data Communications Equipment), and is therefore designed to connect to a DTE (Data Termination Equipment).
- Page 18 RTS/CTS Delay: Carrier: Surge Protection: Power: Temperature: Humidity: Size: terminal raises DTR; DCD turns “ON” after recognizing the receive signal from the line; CTS turns “ON” after the terminal raises RTS. 8 mSec or “no delay” The carrier is switch selected either continuous operation or switched operation, controlled by RTS 600W power dissipation at 1 mS...
- 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.
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