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Summary of Contents for Fibersystem 21-219
- Page 1 Fiberoptic IEEE C37.94 - G.703 E1 mux 21-219 Technical manual...
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Page 2: Table Of Contents
About the contents of this manual The information in this document may be changed at any time without notice. Table of Contents About the contents of this manual Product 21-219 consists of: Table of Contents Serial number. Version and revision history. -
Page 3: Version And Revision History
Version and revision history. Revision history for product: Revision R0. Product released for serial production. 2006-05-26. Revision history for this document. Revision AK0. 2006-05-30, AnNy, document created. Revision R0. 2006-06-05, AnNy, document released. Document properties. Last saved: 6/5/2006 3:42:00 PM Filename: Technical Manual 90_20_0113R0 Author. -
Page 4: Functional
General description Functional The 21-219, Fiberoptic IEEE C37.94 - G.703 E1 converter is intended to extend distance and galvanic isolate the teleprotection equipment for substations connection to telecom network. IEEE C37.94 The standard “IEEE C37.94-2002, IEEE Standard for N times 64 Kilobit per Second Optical Fiber Interfaces between Teleprotection and Multiplexer Equipment”... -
Page 5: G.703 E1 2048Kbit/S
The N is fetched from the IEEE C97.94 protocol indicating the number of timeslots used in the protocol. The 21-219 transfer the N-value but don’t use it for any other purpose. All data bits in all 12 timeslots are transferred, regardless of the value of N. -
Page 6: Applications
Applications Singel IEEE C37.94 link via Telecom network. Dual IEEE C37.94 link via Telecom network. - Page 7 Telecom 21-219 Network 21-219 REL 670 REL 670 REL 670 REL 670 21-219 21-219 Telecom Network Redundant REL 670 system.
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Page 8: Features
Interface 2 BNCs, unbalanced 75 Ohm. Protocol G.703, G.704, 2048 kbit/s. PCM31 or PCM31C, (CRC-check is not used by 21-219). Power Supply. 48V DC to 250V DC, + 20% 110V AC to 230V AC, 50Hz, + 20%. AC connector IEC 320, 3 pin. -
Page 9: Insulation
Insulation Dielectric test IEC 60-255-5, 2,0kV 1min Impulse voltage test IEC 60255 / EN 50178 5kV / 6kV Insulation resistance IEC 60255-5; >100MOhm at 500VDC Physical size and Weight The unit can be to be mounted in a 19” rack. By adjusting, the rack mount brackets, the unit can also be mounted on a wall or similar. -
Page 10: Unpacking
Screw, MFX-H M3x5 FZB 50-65-0106 Power cord, 1.8m European connector. 50-65-5030 Rubber feet 90-20-0113 This manual 21-219, (Part number includes all parts in list above). Power cord. 2 Rack mounting brackets 8 screws for rack 4 Rubber feet mounting brackets... -
Page 11: Serial Number
Installation. Serial number. The products serial number is the best way for Fibersystem to identify the product. If the serial number is not noted on your delivery notes, please add the serial number to your own product documentation. This will be useful at future contact with Fibersystem. -
Page 12: Bnc 75 Ohm G.703 E1 Port
BNC 75 Ohm G.703 E1 Port The connectors are BNC. Tx-port sends data out from 21-219, Rx-port receives data. The BNC-shield is internally connected to chassie/FE. For best signal integrity use a high quality double shielded coaxial cable. For example... -
Page 13: Fiber Optic Ieee C37.94 Ports
Fiber Optic IEEE C37.94 Ports. The fiber optic connector is of ST type. Confirm that the attenuation of the fiber optic cable, including splices and patch cables, doesn’t exceed the system budget. Don’t forget to add a safety margin. Minimum safety margin is 3dB. Make sure that the local fiber optic transmitter, marked Tx, is connected to the remote units fiber optic receiver, marked Rx. -
Page 14: Normal Use
Configuration Normal use Normally no configuration is needed! When two 21-219 are connected back-to-back, (E1 ports connected to each other), one of the 21-219 should be set to “Master mode”. Config rotary switch The rotary switch has 16 positions, (HEX-switch). -
Page 15: External Clock
Internal clock – “Master mode” When HEX-switch is on position 1, the clock used is generated by an internal 2048kHz clock. This is used when two 21-219 are directly connected to each other with coaxial cables. Only one 21-219 shall have this configuration. -
Page 16: Power On
Start and usage. Power on. Connect the power cord to the 21-219 and then connect to mains. LED-status. There are 18 LED-indicators at the front panel. Power A green LED lit when power is connected to the unit. Link A green LED lit when E1-frames, (PCM31 or PCM31C), are received and accepted on BNC-port Rx. - Page 17 When the remote-error is no longer present, the RA-LED will be blink until “Reset”-button is pressed. Status. A red LED is lit when the 21-219 has set outgoing data on fiber to AIS- condition Link Fiber. A green LED indicating that the 21-219 receives correct IEEE C37.94 frames, (no LOS).
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Page 18: Ce - Mark
If you still have problems or questions, don’t hesitate to contact help desk. Please gather all relevant information, including serial number, about your installation before contacting help desk. Our technical support can be reached at: Fibersystem AB Gardsfogdevagen 18B S-16866 Bromma Sweden Telephone: +46-8-564 828 80 •...
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