GE instruction manual Power Budget Calculations for ML1200 PM’s with Fiber Media, Typical

OPERATION CHAPTER 4: OPERATION

4.1.5Power Budget Calculations for ML1200 PM’s with Fiber Media

Receiver Sensitivity and Transmitter Power are the parameters necessary to compute the power budget. To calculate the power budget of different fiber media installations using Multilink products, the following equations should be used:

OPB (Optical Power Budget) = PT(min) - PR(min)

where PT = Transmitter Output Power, and PR = Receiver Sensitivity Worst case OPB = OPB - 1dB(for LED aging) - 1dB(for insertion loss)

Worst case distance = {Worst case OPB, in dB} / [Cable Loss, in dB/Km] where the “Cable Loss” for 62.5/125 and 50/125μm (M.m) is 2.8 dB/km,

and the “Cable Loss” for 100/140 (Multi-mode) is 3.3 dB/km,

and the “Cable Loss” for 9/125 (Single-mode) is 0.5 dB/km

and the “Cable Loss” for 9/125 (Single-mode) is 0.4 dB/km (LX25)

and the “Cable Loss” for 9/125 (Single-mode) is 0.25 dB/km (ZX40)

and the “Cable Loss” for 9/125 (Single-mode) is 0.2 dB/km (ZX70)

The following data has been collected from component manufacturer’s (Agilent’s and

Lucent’s) web sites and catalogs to provide guidance to network designers and installers.

Fiber Port	Speed, Std.	Mode	Std. km	Wavelength	Cable Size/μm	X’mitr	R’cvr	Worst	Worst*	typical	typical*
Module			fdx	nm		Output	Sens.	OPB,	distance	OPB,	distance
			(hdx)			PT	PR	dB	Km	dB	Km
						dB	dB		fdx		fdx
C7	10Mb	Multi-Mode	2	850	62.5/125	-15.0	-31	14	5	17	6
	FL		(2)		100/140	-9.5	-31	19.5	5.9	23.5	7
					50/125	-19.5	-31	19.5	3.4	13.5	4.8
C8, C9	100Mb	Multi-mode	2	1300	62.5/125	-20	-31	9.0	3.0	14	5
	FX		(0.4)		50/125	-23.5	-31	5.5	2.0	12	4
CA	100Mb	Single-mode18+		1300	9/125	-15	-31	14	28	17.5	35
	FX		(0.4)
CB	100Mb	Single-mode40		1300	9/125	-5	-34	29	58	32.5	65
	FX		(0.4)
CC	100Mb	Multi-mode	2	1300	62.5/125	-20	-31	9.0	3.0	15.8	5.5
	FX		(0.4)		50/125	-23.5	-31	5.5	2.0	12.2	4.0
CD	100Mb	Multi-mode	2	1300	62.5/125	-19	-31	12	4	16	5.7
	FX		(0.4)
CE	100Mb	Single-Mode 15+		1310	9/125	-15	-28	11	22	-	-
	FX		(0.4)
H3, HG	1000 Mb FX	Single-Mode 10		1310	9/125	-10.0	-22	10	22	11	24
	(Gigabit)

4–4 MULTILINK ML1200 MANAGED FIELD SWITCH – INSTRUCTION MANUAL