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USER
MANUAL
MODEL 1004
and 1004S
High Speed,
Multipoint Short
Range Modem
Part# 07M1004-C
SALES OFFICE
Doc# 047011UC
(301) 975-1000
Revised 8/10/95
TECHNICAL SUPPORT
(301) 975-1007
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1.0 WARRANTY INFORMATION 2.0 GENERAL INFORMATION Patton Electronics warrants all Model 1004 components to be Thank you for your purchase of this Patton Electronics product. free from defects, and will—at our option—repair or replace the prod- This product has been thoroughly inspected and tested and is warrant- uct should it fail within one year from the first date of shipment. ed for One Year parts and labor. If any questions or problems arise This warranty is limited to defects in workmansh
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3.0 CONFIGURATION The Model 1004 is configured using six PC board mounted switch- 3.2 ACCESSING THE CONFIGURATION SWITCHES es. Figure 1 shows the switch locations, along with the location of the terminal blocks and optional surge protectors: The five switches shown in Figure 3 configure the Model 1004 for RTS/CTS delay, echo, method of carrier control, impedance and 2-wire/4-wire operation. These switches are located internally on the Model 1004's PC board. To access switch set 1 (SW1) and
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3.2.1 SWITCH SETTINGS SW 1-4: Impedance All possible settings for the Model 1004’s configuration switches are presented in the summary table below. If you have additional Switch SW1-4 defines a termination resistance. The Model 1004’s questions, contact Technical Support at (301) 975-1000. generator can drive 50 unit loads including two termination resistances of 120 Ohms each. SWITCH SUMMARY TABLE SW1-4 Setting Position Function Off Position On Position Off High (120K Ohm) SW1-1 RTS/CTS Del
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4.0 INSTALLATION 3. Strip the insulation on each of the twisted pair wires about .25”. Once the Model 1004 is properly configured, it is ready to connect to your system. This section tells you how to properly connect the Model 1004 to the twisted pair and RS-232 interfaces, and how to operate the Model 1004. 4.1 TWISTED PAIR CONNECTION 4. In a two pair circuit, connect one pair of wires to XMT+ and The Model 1004 supports data-only communication between two XMT- (transmit positive and negat
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8. When you finish connecting the wires to the terminal block, the 10. Insert the strain relief assembly and wire into the slot in the assembly should resemble the diagram below: bottom half of the modem case. Set it into the recess in the case. 9. Place the 2 halves of the strain relief assembly on either side 11. BEND the top half of the case as necessary to place it over of the telephone wire and press together very lightly. Slide the assem- the strain relief assembly. Do not snap the
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4.1.2 TWISTED PAIR CONNECTION USING RJ-11 OR RJ-45 RJ-45 Cable (4-Wire) The RJ-11 and RJ-45 connectors on the Model 1004’s twisted pair SIGNAL PIN# PIN# SIGNAL interface are pre-wired for a standard TELCO wiring environment. The † † signal/pin relationships are shown below: GND 2-----------------------7 GND RCV- 3-----------------------5 XMT- RJ-11 SIGNAL RJ-45 SIGNAL XMT+ 4-----------------------6 RCV+ XMT- 5-----------------------3 RCV- † 1 ...................GND 1 ...................N/C RCV
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Figure 4 shows how to wire the two-pair cables properly for a With the dual modular units, you won't need to build cumbersome Model 1004 star topology. Note that the ground connection is not “Y” cables for your daisy chain application. Simply use a crossover needed. cable to go between the host and the first slave (see Section 4.1.2 for crossover cable wiring instructions), and straight through cables between the slaves. HOST FIRST SLAVE SECOND SLAVE XMT+ RCV+ 4.3 CONNECTION TO THE RS-232 IN
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APPENDIX A APPENDIX B SPECIFICATIONS RS-232 PIN CONFIGURATIONS Transmission Format: Asynchronous DIRECTION “DCE” SETTING DIRECTION Data Rate: Up to 115,200 bps 1- (FG) Frame Ground Transmit Line: 2, 4 wire unconditioned twisted pair 2- (TD) Transmit Data To Model 1004 3- (RD) Receive Data From Model 1004 4- (RTS) Request to Send To Model 1004 Transmit Mode: Full or half duplex 5- (CTS) Clear to Send From Model 1004 6- (DSR) Data Set Ready From Model 1004 Transmit Level: 0 dBm 7- (SG) Signal Gro
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APPENDIX C BLOCK DIAGRAM 17
