DWDM DATA SHEET DB4134-E Issue F Page 1 of 6 Passive optical multiplexer/de-multiplexer. Increases the capacity of existing networks by transferring several wavelengths on the same fibre. Independent of protocol and bitrate. Delivered in several combinations from 8 to 40-channel DWDM. Description The DWDM is delivered as 1U panel or as modules for 1U/3U modular panel. They are based on reliable passive technology and are delivered with SC or LC interface with PC or APC polished connectors. Modules The modules are inserted in a 1U or 3U panel (se separate data sheet for details). The 3U panel may be populated with up to 12 modules, the 1U panel with up to 3 modules, and they may be placed in any order in the panel. This ensures a flexible and modular system with simple access to adding modules at a later stage and also offers high density with the panel fully equipped. Each module is complete with components for two-way communication, terminated in LC connectors at the front. The panel is intended for mounting in 19 racks. 1U panel This is a panel for mounting in 19 or metric racks. The panel may offer high density, but do not offer any good possibilities for later expansion within the same panel. Each panel is complete with components for two-way communication, terminated in SC or LC connectors at the front. 3U modular panel with modules The panel is ready to be installed in 19 racks. By turning the mounting bracket it may also be 1U panel with 8 channels installed in a metric rack. When the panel is to be placed in a 19" rack the bracket may be moved about 2 cm forward if needed. In this way the panel moves 2 cm further back in the rack. This gives more room in front of the panel, which may be beneficial for instance if the distance to the rack door is short. System description Passive DWDM panels/modules are a reliable and reasonable method for transferring several wavelengths/signals over the same fibre (wavelength multiplexing). In this way you may increase the capacity of existing fibre-cable significantly. Combined with OADM you may add or drop wavelengths on the way between the end points. A big advantage of using passive wavelength multiplexing is also that the method is protocol and bitrate independent. A complete system with components for two-way communication (multiplexer and de-multiplexer) in both ends are made with two panels/ modules.
DATA SHEET DB4134-E Issue F Page 2 of 6 The DWDM channels are defined by ITU and are based on frequency (THz) - not wavelength. The table below show the connection between channel number, frequency and wavelength for the most common channels in a system with 100GHz channel spacing. The table mat be expanded both up and down in frequency, in addition the DWDM units may also be delivered with 50 and 200 GHz spacing. By using 50GHz spacing, 2 40-channels DWDM s and an interleaver you may have 80 channels in a system. Channel Frequency (THz) Wavelength (nm) Channel Frequency (THz) Wavelength (nm) Channel Frequency (THz) Wavelength (nm) 17 191.7 1563.86 32 193.2 1551.72 47 194.7 1539,77 18 191.8 1563.05 33 193.3 1550.92 48 194.8 1538,98 19 191.9 1562.23 34 193.4 1550.12 49 194.9 1538,19 20 192.0 1561.42 35 193.5 1549.32 50 195.0 1537,40 21 192.1 1560.61 36 193.6 1548.51 51 195.1 1536,61 22 192.2 1559.79 37 193.7 1547.72 52 195.2 1535,82 23 192.3 1558.98 38 193.8 1546.92 53 195.3 1535,04 24 192.4 1558.17 39 193.9 1546.12 54 195.4 1534,25 25 192.5 1557.36 40 194.0 1545.32 55 195.5 1533,47 26 192.6 1556.55 41 194.1 1544.53 56 195.6 1532,68 27 192.7 1555.75 42 194.2 1543.73 57 195.7 1531,90 28 192.8 1554.94 43 194.3 1542.94 58 195.8 1531,12 29 192.9 1554.13 44 194.4 1542.14 59 195.9 1530,33 30 193.0 1553.33 45 194.5 1541.35 60 196.0 1529,55 31 193.1 1552.52 46 194.6 1540.56 61 196.1 1528,77 The standard way of using the these units are in a 2-fibre solution where 1 fibre is used in each direction as shown in the illustration below. Some types may also be delivered with monitor port (as shown with dashed lines in the figure). Here 2% of the line signal is tapped of to enable monitoring without disturbing the traffic. Rx 1 panel/ module 1 panel/ module Tx Line Tx Line Rx Tx Monitor port (option) Monitor port (option) Rx Line Rx 2-fibre solution (1 fibre in each direction) Line Tx
DATA SHEET DB4134-E Issue F Page 3 of 6 The figure below illustrates how the DWDM wavelengths fit in with the standard CWDM wavelengths. DWDM 1271 1291 1311 1331 1351 1371 1391 1411 1431 1451 1471 1491 1511 1531 1551 1571 1591 1611 nm The DWDM units may in addition to being used in a pure DWDM system also be connected to a CWDM system as shown in the figure to the right. The DWDM channels 50-61 may be multiplexed/de-multiplexed on to the 1531 CWDM channel and the DWDM channels 25-41 to the 1551 CWDM channel. CWDM Specifications Dimensions (HxWxD): panel: 44 x 484 (19 ) x 240 mm module: 130 x 35 x 210 mm 1-slot Weight: panel: Ca. 2 kg depending on equipment module: 0,2-0,5 kg depending on equipment Operating temperature: -40 C to 85 C Insertion loss*: 4-channel: < 5.0 db < 3.5 db typically 8-channel: < 6.6 db < 4.7 db typically 8-channel + Monitor: < 7.0 db < 5.0 db typically 16-channel: < 9.0 db < 6.7 db typically 32-channel: < 11.0 db < 8.2 db typically 40-channel + Monitor: < 13.0 db < 9.8 db typically * Loss over a system (2 panels and 4 connector-pairs) Wavelength: according to ITU-T G.694.1 See the table on former page Pass band: +/- 0.11 nm Monitor output (where available): 17 25 db below the line signal (2-0.3%)
DATA SHEET DB4134-E Issue F Page 4 of 6 Overview of the DWDM units 4 channel DWDM FPM76/4DWDM 4 channel DWDM, ch x - y FP65/4DWDM FP65/2x4DWDM 4 channel DWDM, ch x - y 2 x 4 channel DWDM, ch x - y FPM76/4DWDM FP65/4DWDM 8 channel DWDM FPM76/8DWDM 8-channel DWDM, ch x - y FP65/8DWDM FP65/8DWDM-M 8-channel DWDM, ch x - y 8-channel DWDM, ch x - y + Monitor FPM76/8DWDM FP65/8DWDM 16 channel DWDM FPM76/16DWDM 16-channel DWDM, ch x - y FP65/16DWDM 16-channel DWDM, 1470-1610 FPM76/16DWDM FP65/16DWDM * example channel numbers - others may be used
DATA SHEET DB4134-E Issue F Page 5 of 6 Overview of the DWDM units cont. 32 channel DWDM FPM76/32DWDM 32-channel DWDM, ch x - y FP65/32DWDM 32-channel DWDM, ch x - y FP65/32DWDM 40 channel DWDM FP65/40DWDM FP65/40DWDM+M 40-channel DWDM, ch x - y 40-channel DWDM, ch x - y + Monitor 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 * FP65/40DWDM * example channel numbers - others may be used
DATA SHEET DB4134-E Issue F Page 6 of 6 Article numbers 1U Panel: FP65/4DWDM/yy-Sxxx FP65/4DWDM/yy-Sxxx-M FP65/8DWDM/yy-Sxxx FP65/8DWDM/yy-Sxxx-M FP65/16DWDM/yy-Sxxx FP65/16DWDM/yy-Sxxx-M FP65/32DWDM/yy-Sxxx FP65/32DWDM/yy-Sxxx-M FP65/40DWDM/yy-Sxxx-M FP65/40DWDM/yy-Sxxx-M 4-channel DWDM, ch yy - yy+4, xxx 4-channel DWDM, ch yy - yy+4 + Monitor port, xxx 8-channel DWDM, ch yy - yy+8, xxx 8-channel DWDM, ch yy - yy+8 + Monitor port, xxx 16-channel DWDM, ch yy - yy+16, xxx 16-channel DWDM, ch yy - yy+16 + Monitor port, xxx 32-channel DWDM, ch yy - yy+32, xxx 32-channel DWDM, ch yy - yy+32 + Monitor port, xxx 40-channel DWDM, ch yy - yy+40 + Monitor port, xxx 40-channel DWDM, ch yy - yy+40 + Monitor port, xxx Modules: FPM76/4DWDM/yy-Sxxx Module, 4-channel DWDM, ch yy - yy+4, xxx 1 slot FPM76/4DWDM/yy-Sxxx-M Module, 4-channel DWDM, ch yy - yy+4 + Monitor port, xxx 1 slot FPM76/8DWDM/yy-Sxxx Module, 8-channel DWDM, ch yy - yy+8, xxx 1 slot FPM76/8DWDM/yy-Sxxx-M Module, 8-channel DWDM, ch yy - yy+8 + Monitor port, xxx 1 slot FPM76/16DWDM/yy-Sxxx Module, 16-channel DWDM, ch yy - yy+16, xxx 2 slot FPM76/16DWDM/yy-Sxxx-M Module, 16-channel DWDM, ch yy - yy+16 + Monitor port, xxx 2 slot FPM76/32DWDM/yy-Sxxx Module, 32-channel DWDM, ch yy - yy+32, xxx 3 slot FPM76/32DWDM/yy-Sxxx-M Module, 32-channel DWDM, ch yy - yy+32 + Monitor port, xxx 3 slot yy = xxx = first channel number connector type in front of the panel/module: SC = SC/PC (not available for modules) SCA = SC/APC (not available for modules) LC = LC/PC LCA = LC/APC Other combinations of both the 1U panel and the modules may be available on request. Accessories FP70301 Cable guide, 0,5U FP70360 Cable guide, 1U FP70325 Storage unit, 2U 02/NCD513 Cable guide II FP70333 Cover, 3U FP70334 Cover, 4U Only for modules: FPM76100 FPM76105 FPM76106 FPM76190 Panel, modular, 12-slot, 3U Panel, modular, 3-slot, 1U Lid, 1U panel Blanking plate, 1-slot