4190-9010 Coupler Requirements; Table 4-3. Dual Fiber Optic Cable Communications Distance Examples; Table 4-4. Single Fiber Optic Cable Communications Distance Examples - Simplex 4100ES Installation Manual

Step 4. Wiring Network Cards (continued)
4190-9010 The 4190-9010 Coupler (271-012) is used with the 565-261 Fiber Optic Media Board (revision
Coupler
"C" or higher), the 566-376 or the 746-109. Two 4190-9010 Bi-Directional Couplers are
Requirements
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:
50/125
numerical
aperture = 0.2
62.5/125
numerical
aperture = 0.275
*See notes at bottom of page.

Table 4-4. Single Fiber Optic Cable Communications Distance Examples*

1
Fiber Type
50/125 numerical
numerical = 0.2
62.5/125 numerical
aperture = 0.275
*Examples made using 4190 9010 Bi-Directional Couplers
Notes for Table 4-3 and Table 4-4:
Black Box, part number FO200
Fiber Instrument Sales, part number F1-8101
Newark Electronics, part number 95F2097
(or the equivalent)

Table 4-3. Dual Fiber Optic Cable Communications Distance Examples

1
Fiber Type *
Power
2
MIFL
Margin
3 dB/km
2 dB
3.2 dB/km
1. Cable specifications are for 50 or 62.5 micron core with 125 micron cladding, multi-mode
graded index fiber. Wavelength = 850 nm.
2. MIFL = Maximum Individual Fiber 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, which-
ever is shorter. Maximum distances listed for dual fiber 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 fiber allowing launch power to be the same.
Power
2
MIFL
Margin
4 dB/km 4 dB
3 dB/km 3 dB
4 dB/km 4 dB
3.75 dB/km 3 dB
3 3
Distance Budget
7,650 ft(2.33
km)
21.4 dB
8,200 ft (2.5
km)
4-14
Chapter 4 Networking
3 3
Distance Budget
10,000 ft 17 dB
(3.05 km)
15,000 ft
(4.57 km)
13,000 ft 20.4 dB
(3.96 km)
15,000 ft
(4.57 km)
4190-9010
ST to ST
Coupler Loss
Coupler Loss
3 dB
9.4 dB
2 dB
Continued on next page