Step 4. Wiring Network Cards, Continued
The 4190-9010 Coupler is used with the 4100-6057 Fibre Optic Media Board, revision
“C” or higher. Two 4190-9010 Bi-Directional Couplers are required per connection, one
at each node.
The 4190-9010 is equipped with type ST connectors. To make type ST to type ST
connections, an ST to ST coupler, by others, is required. ST to ST Couplers are available
from:
Black Box, part # FO200
Fiber Instrument Sales, part # F1-8101
Newark Electronics, part # 95F2097
(or equivalent)
Table 3-3. Dual Fibre Optic Cable Communications Distance Examples
50/125
numerical
aperture = 0.2
62.5/125
numerical
aperture = 0.275
*See notes at bottom of page.
Table 3-4. Single Fibre Optic Cable Communications Distance Examples
Using 4190-9010 Bi-Directional Couplers
50/125
numerical
aperture = 0.2
62.5/125
numerical
aperture
= 0.275
Notes for Tables Above:
1. Cable specifications are for 50 or 62.5 um core with 125 um cladding, multi-mode
graded index fibre. Wavelength = 850 nm.
2. MIFL = Maximum Individual Fibre Loss. Numbers shown are for example reference
only, refer to specific cable for exact specification.
3. Maximum cable length is determined by distance listed or by reaching budget value,
whichever is shorter. Maximum distances listed for dual fibre cable are shorter than
would be calculated. Budget using 4190-9010 Bi-Directional Coupler is the same with
either size cable because the coupler input cables are 62.5/125 um fibre allowing
launch power to be the same.
Continued on next page
4190-9010 Coupler
Requirements
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