Summary of Contents for Fibersystem 21-1601
- Page 1 Fiberoptic G.703 / X.21 (/ RS530) modem 21-1601 / 21-1651 / “21-16xx” 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 21-1601 consists of: Table of Contents Product 21-1651 consists of: Version and revision history. -
Page 3: Version And Revision History
Version and revision history. Revision history for product: Revision Rx. Product released for serial production. 199x-xx-xx. Revision Rx+. New power supply manage both DC and AC. 2001-02-27. From serial number 4258 - . Revision Rx++. Port RS530 removed October 2006. From serial number 13758 - . -
Page 4: Functional
Loop clock, where the modem recovers the clock from the fiber link. The 21-1601 or 21-1651 can be connected to a telecom network or “back-to-back”. The front panel is marked 21-16xx and the product is often referred to as “21-16xx”. -
Page 5: Power Supply
The only thing that differs between 21-1601 and 21-1651 is the type of connector for main power supply. 21-1601 has a IEC 320, 3-pin power connector. It also have a mains filter and a fuse available for replacement. 21-1651 has a 3-pin XLR connector. No filter. Fuse not replaceable. -
Page 6: Fiber Optic Protocol
The fiberoptic port of the ABB REL55x/56x , Line Differential Protection Terminals, is directly connected to the fiberoptic port of 21-16xx. The 21-16xx Codir- port is then connected to a PDH multiplexer. Or connect to another Fibersystem product using the same fiber optic protocol. 21-170 Telecom... -
Page 7: Features
Features Fiberoptic and data transfer protocol Between differential relay and 21-16xx. Data speed/protocol Fibersystem proprietary protocol. Optical data Wavelength 820nm Fiber optical connector Optical System budget 13dB with multimode fiber, (62.5/125 um) 9dB with multimode fiber, (50/125 um) Typical distance 2km (6dB systemmargin for 62.5/125... -
Page 8: Power Supply
Power Supply. 48V DC to 250V DC, + 20% 110V AC to 230V AC, 50Hz, + 20%. AC connector IEC 320, 3 pin. Power consumption <20W. Physical size The unit can be mounted in a 19” rack. By adjusting, the rack mount brackets, the unit can also be mounted on a wall or similar. -
Page 9: Unpacking
21-1601 Fo modem G703/X.21/RS530 230V (Part number includes all parts in this list). 50-65-0106 Power cord, 1.8m European connector. 90-20-0 This manual Front on both 21-1601 and 21-1651. Back 21-1601. Product 21-1651 consists of: Quantity Part number Description 21-1651 Fo modem G.703/X.21/RS530 (Part number includes all parts in this list). - Page 10 Back and power connector for 21-1651.
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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: X.21
X.21 Contact D15 female, (15-pin D-sub). The X.21 interface is defined as a digital signaling interface between customers (DTE) equipment and carrier’s equipment (DCE). And is primarily used for telecom equipment. All signals are balanced (RS422). There is always a pair (+/-) for each signal. Signal Function Shield... -
Page 13: Rs530 Port
The 21-16xx can be configured for DCE or DTE operation by internal straps. See chapter “Configuration”. Note 21-16xx shall be seen logically more as an extension cable than as a modem. Both data and control signals are mirrored to the remote side 21-16xx. Control signals of the X.21 interface are not used for control of the 21-16xx traffic. -
Page 14: 2048Kbps, E1 Port - Bnc 75 Ohm
Contact D25 female, (25-pin D-sub). Signal Function Signal direction on D-sub Shield Shield – Chassies ground TxD A Transmit Data (A) RxD A Receive Data (A) RTS (A) Request To Send (A) Clear To Send DSR (A) Data Set Ready (A) SGND Signal Ground DCD (A) -
Page 15: Codir/Contra Port
G.703 Codir/contra Port. The RJ45 connector and the 9-pin D-sub connector are connected in parallel. Codir and contra are selectable by strapping pins. See chapter “Configuration”. LEDs CO and Con shows the selected mode. CO Codir. CON Contra. Signal Function Signal direction RJ45 9-p D-sub... -
Page 16: Fiber Optic Port
Fiber Optic Port. 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 17: Factory Settings
Configuration Factory settings The most common configuration is set at delivery. S1 – Signal ground and Chassie ground are connected. Chassie is connected to Protective Earth(PE)/Ground with the Power supply cord. S5 – Codir/Contra S6 – Codir S11 – 64kbps , (Position 9). S2, S3, S4, 15, S16 –... - Page 18 Screw Screw Screw Remove 3 screws. Gently bend with a screwdriver to push out and remove the backpanel. Don’t remove the cables attached to the backpanel. Turn the unit so top lid is facing up. Press/slide the top lid backwards so it loosens from the frontpanel.
- Page 19 Lift the top lid in back. And remove the top lid. Now the 21-16xx is ready for configuration. Disassembled 21-16xx.
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Page 20: Configuration
Configuration Interface – S5 Codir/Contra – S6 Clock source – S14 Clock speed/data rate – S11 Synchronization of clocks – S13 Contra clock mode – S7, S8 and S8 X.21 DTE or DCE pinning – S2, S3, S4, S15 and S16 Signal ground to Protective ground reference –... -
Page 21: E1 2048Kbps
G.703 E1 2048kbps. Data rate selector S11 shall be set to position 0, 2048kbps. Codir – Contra, CO/CON If S5 G.703 64kbps Codir/Contra is selected, select with S6 Codir or Contra. S6 may NOT be left open! CO / CONTRA Contra clock mode Select clock mode for Contra First with S7 select if 21-16xx shall transmit the receive and transmit clock. -
Page 22: Clock Source
Clock source. 1. FIB CLK – Fiber clock. With strap, clock is extracted from incoming signal on fiber. 2. EXT CLK – External clock. With strap clock is extracted from signal on electrical interface. 3. Internal clock. No strap on FIB CLK and no strap on EXT CLK. Clock is generated internally in 21.16xx. -
Page 23: Clock Speed/Data Rate
Clock speed/data rate. Select data rate with HEX-switch S11. The different interfaces have individual possible selections: Data rate G.703, G.703 G.703 X.21 RS-530 (kbps) position 2Mbps codir contra 2048 0, E, F 1536 1024 38,4 19,2 NOTE! Regardless of the clock method, the data rate must be set accordingly to the data rate used! -
Page 24: Mode
X.21 mode. Select with S2, S3, S4, S15 and S16 the pinning of the 15 pin D-sub. All straps in lower position DCE pinning. All straps in upper position DTE pinning. D-sub pinning Signal Function Shield Shield – Chassies ground TxD A Transmit (A) Control (A) -
Page 25: Rs530 Mode
RS530 mode. Not available on units produced later than October 2006. DTE or DCE function must be selected with pinning of cable connectors. If both local 21-16xx and remote 21-16xx has Internal Clock selected the link works in Asynchronous mode. S11 shall be set to position 2048kbps. Maximum data rate is 256kbps in asynchronous mode. -
Page 26: Power On
Start and usage. Power on. Connect the power cord to the 21-1601 / 21-1651 and then connect to AC-mains or DC-supply. The “LO”-LED shall be lit green. If not, try to cross-connect the fibers at one end of the link. - Page 27 A yellow LED indicate the status of CTS, (Clear To Send) on interface RS530 . A yellow LED indicate the status of DSR, (Data Set Ready) on interface RS530 . A yellow LED indicate the status of DCD, (Data Carrier Detect) on interface RS530. Local Alarm.
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Page 28: 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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