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TC1710
RS-422, RS-485 (2/4 WIRE)
FIBER OPTIC MODEM
(with Optional Dual Optics)
User's Manual
MODEL:
S/N:
DATE:
Although every effort has been made to insure that this manual is current
and accurate as of date of publication, no guarantee is given or implied
that this document is error free or accurate with regard to any specifica-
tion. TC Communications, Inc. reserves the right to change or modify
the contents of this manual at any time without prior notification.
©
COPYRIGHT 1992-2012. ALL RIGHTS RESERVED.
TC Communications, Inc. 17881 Cartwright Road, Irvine, CA 92614
Tel: (949) 852-1972
Fax: (949) 852-1948
Notice!
Web Site: www.tccomm.com
Email: info@tccomm.com
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Table of Contents
Related Manuals for TC Communications TC1710
Summary of Contents for TC Communications TC1710
- Page 1 TC Communications, Inc. reserves the right to change or modify the contents of this manual at any time without prior notification.
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Page 2: Table Of Contents
TC1710 RS-485 Table of Contents (Optional Dual Optics) User's Manual Rev. 1.6 Chapter 1 - Overview ....................... 3 Description ............................3 Electrical Specifications ........................3 Theory of Two and Four Wire RS-485 Operation ................3 Two and Four Wire RS-485 pin connection diagrams ..............4 RS-422/RS-485 pin connection diagram .................. -
Page 3: Chapter 1 - Overview
RS-422 with DB25 connector). It is available in either rack mount or stand alone versions; the rack mount version can be converted to the stand alone version with the addition of a sheet metal box. The TC1710 can communicate at distances up to 4 km using Multimode optics and up to 80 km using Single Mode optics. - Page 4 TC1710 RS-485 (Optional Dual Optics) User's Manual RS-485 Pin Connections Rev. 1.6 For Two-wire RS-485 interfaces, pins 3(-) & 16(+) are input/outputs. Ω Figure 3. Two-wire RS-485 Connection/Logic Diagram For RS-422 and RS-485 Four-wire interfaces, pins 2(-) & 14(+) are inputs while pins 3(-) & 16(+) are outputs.
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Page 5: Leds, Dip Switches And Connectors
TC1710 RS-485 (Optional Dual Optics) User's Manual Rev. 1.6 LEDs, DIP Switches and Connectors Figure 5. TC1710's Front Panel −5−... -
Page 6: Dip Switch Functions
User's Manual Rev. 1.6 For troubleshooting purpose, user can conduct remote loopback and local loopback test. TC1710 also has a built-in signal generator for user to validate fiber optic link. There are two groups of DIP switches: one at the front panel, the other one is located at the center of the PC board. -
Page 7: Rs-485 Transition Timer Setup
The termination resistors are 100 to 130 ohm resistors located inside the TC1710. Two jumpers, identified as board locations “JP2” & “JP3,” control the termination resistance on each unit. “JP3” controls the resistance for the unit’s receiver, while “JP2”... -
Page 8: Optical Redundancy (Optional)
Power Supply The TC1710 consumes very low power. The input voltage is from 12V to 14V DC and current is 500mA (max). You may use an external power adapter with the following specifications: 12V DC @800mA (positive polarity at the left terminal when viewed from the rear panel). -
Page 9: Chapter 2 - Installation
Inc. Equipment Location The TC1710 should be located in an area that provides adequate light, work space, and ventilation. Avoid locating it next to any equipment that may produce electrical interference or strong magnetic fields, such as elevator shafts, heavy duty power supplies, etc. As with any electronic equipment, keep the unit from excessive moisture, heat, vibration, metallic particles and freezing temperatures. -
Page 10: Chapter 3 - Troubleshooting
TC1710 RS-485 (Optional Dual Optics) User's Manual Rev. 1.6 Figure 8. Typical Point-to-Point RS-485 Application After installation is complete, it is an excellent idea to verify and record the optical cable loss. This reading will both verify the integrity of the system and provide a benchmark for future troubleshooting efforts (see Chapter 3 - Troubleshooting). -
Page 11: General
Appendix A & B for DCE/DTE user equipment pin connections). Verify signal connections by checking the status LEDs on the front panel of the TC1710. Verify that the pin signal connections match the appropriate LED responses (see Figures 3 & 4). -
Page 12: Optic Cable Verification
TC1710 RS-485 (Optional Dual Optics) User's Manual Rev. 1.6 Optic Cable Verification If the "Rx-A" LED on the front panel is flashing (or off), this is an indication that the optic signal is not being correctly received. Usually, unsecured fiber optic connectors or faulty cable are to blame. A good connection is indicated by the "Rx-A"... -
Page 13: Chapter 4 - Bench Tests
5. The "Vcc" LED should be illuminated. Please note: all other LEDs can be in a random state (flashing, solidly lit, or off) as only upon proper receipt and transmission of a signal will the TC1710 set its LEDs appropriately for normal operation. -
Page 14: Bench Test With Built-In Signal Generator
1. Setup the bench test as shown in figure 9. 2. At the local TC1710 unit, turn on the "SIG-GEN" by sliding SW1-1 (switch 1 of the "SW1 Internal DIP Switch") to the right (on) position. 2a. For "Async" units(SW1-4: enable "on"): Turn on the "RMTLB" by pressing down the DIP switches #1 of "Front Panel DIP Switches"... -
Page 15: Chapter 5 - Component Placement
TC1710 RS-485 (Optional Dual Optics) Chapter 5 - Component Placement User's Manual Rev. 1.6 Figure 10. Component Locations on TC1710's Internal PCB (with optional Dual Optics) −15−... -
Page 16: Chapter 6 - Specifications
TC1710 RS-485 (Optional Dual Optics) Chapter 6 - Specifications User's Manual Rev. 1.6 Data Rates Asynchronous ....................Up to 10Mbps Optical Transmitter ......................... LED/ELED Receiver ........................Pin Diode Wavelength ..................850nm/1310nm Multimode ......................1310/1550nm Single Mode Connector ..................... ST* (optional FC) Loss Budget** .......... -
Page 17: Appendix A
TC1710 RS-485 (Optional Dual Optics) Appendix A User's Manual Rev. 1.6 DB25 to Winchester (DTE) Adapter Cable Figure 11. DB25 to V.35 Winchester DTE Pin Assignments −17−... -
Page 18: Appendix B
TC1710 RS-485 (Optional Dual Optics) Appendix B User's Manual Rev. 1.6 DB25 to Winchester (DCE) Adapter Cable Figure 12. DB25 to V.35 Winchester DCE Pin Assignments −18−... -
Page 19: Return Policy
Buyer should notify TC Communications, Inc. promptly in writing of any claim based upon warranty, and TC Communications, Inc., at its option, may first inspect such goods at the premises of the Buyer, or may give written authorization to Buyer to return the goods to TC Communications, Inc., transportation charges prepaid, for examination by TC Communications, Inc. - Page 20 Limitation of Liability (Cont.) Rev. 1.6 2. In no event shall liability attached to TC Communications, Inc. unless notice in writing is given to TC Communications, Inc. within ten days of the occurrence of the event giving rise to such claim.