907-Cwdm-8 (8-Channel Cwdm Optics Card); Figure 6-7: 907-Cwdm-8, 8-Channel Cwdm Optics Card - Focal 907 User Manual

907-0601-00 Rev. C
6.6

907-CWDM-8 (8-Channel CWDM Optics Card)

Card P/N
Config. Dwg.
Several versions of 8-Channel CWDM optics cards (907-CWDM-8) are available for the Model 907. Variations
include multimode and singlemode options, different ranges of wavelengths, different physical layouts and
connector types, and options for bypass/express ports to daisy chain CWDMs.
A typical 907-CWDM-8 optics card, shown in Figure 6-7, is used to optically multiplex eight standard CWDM
channels with 20 nm spacing, into a single common optical fiber (COM) for connection to the external fiber
system. The same card is used to de-multiplex signals from a single fiber into eight optical channels. A
907-CWDM-8 card with part number 907-0015-20, for example, multiplexes CWDM channels 1471, 1491,
1511, 1531, 1551, 1571, 1591, and 1611. In addition, the express or bypass channel (EXP or BYPASS),
when available, can be used to pass all wavelengths from 1261 to 1451 nm.
Pressure tolerant versions of the 907-CWDM-8 cards are also available.
The center wavelengths of band 1 (red band) are 1471 / 1491 / 1511 / 1531 / 1551 / 1571 / 1591 / 1611 nm
and the center wavelengths of the band 2 (blue band) are 1271 / 1291 / 1311 / 1331 / 1351 / 1371 / 1391 /
1411 / 1431 / 1451 nm.
Optical insertion loss is typically less than 3 dB per 907-CWDM-8 card. Optical link analysis must account for
CWDM cards at both ends of the system.
Focal Technologies Corp.
907-0015-20
907-2031-04

Figure 6-7: 907-CWDM-8, 8-Channel CWDM Optics Card

Model 907 Video/Data Multiplexer – User's Guide
Page 6-7