NGB-9912, NGB-9924

GT LASERS NGB-9912 (two-port), NGB-9924 ( four-port ), is a type of high-grade AGC, Network management, Bi-direction, outdoor optical receiver. Various operating parameters of machine are microprocessor-controlled, LED display. Through the keys of machine can adjust and set EQ、ATT. Optional network transponder, implement remote network management. Large dynamic range of optical AGC characteristics, NGB-9912 (two-port), NGB-9924 (four-port ) high output ,for FTTC, FTTN fiber access network. As a unit of CATV network RX, is a high performance, highly flexible, cost-effective CATV optical receiver.
NGB-9912 / N: AGC, Bi-direction, 2 ports output outdoor optical receiver, With network
management Transponder.
NGB-9912 / O: AGC, Bi-direction, 2 ports output outdoor optical receiver, Without network
management Transponder.
NGB-9924 / N: AGC, Bi-direction, 4 ports output outdoor optical receiver, With network
management Transponder.
NGB-9924 / O: AGC, Bi-direction, 4 ports output outdoor optical receiver, Without network
management Transponder.

◉ HFC

◉ FTTC、FTTN

Performance			Index	Supplement
Optical feature	Operating wavelength	(nm)	1260~1620
	Response degrees	(A/W)	>0.85	1310nm
			>0.9	1550nm
	Optical AGC control range	(dBm)	-9~+2
	Optical return loss	(dB)	≥50
	Fiber linker		LC/APC	Optional SC/APC, FC/APC
RF feature	Operating bandwidth	(MHz)	47~862	NGB-9912,NGB9924/口-0
			52~862	NGB-9912,NGB9924/口-4
			88~862	NGB-9912,NGB9924/口-6
	Flatness	(dB)	≤±1.0
	Output level	(dBμV)	108±1.0	Pin:-9.0~2.0dBm
	AGC feature	(dB)	≤±1.0	Pin:-9.0~2.0dBm
	Output level adjust range	(dB)	-20~0
	Output slope adjust range	(dB)	-10~0
	Return loss	(dB)	≥14	47~862MHz
	Output impedance	(Ω)	75
	RF connector		F-Female
Link feature	Test channel		59CH(PAL-D)	47~550MHz analog
			Digital QAM	550~862MHz
	OMI	(%)	3.8
	CNR	(dB)	≥52	Pin=-2.0dBm
	CTB	(dB)	≥-65	Vo=108dBμV
	CSO	(dB)	≥-60	Vo=108dBμV
	HUM	(dB)	≥-60
Return transmit feature	Optical emission wavelength	(nm)	1310	43×4, 63×4
			1550	45×4, 65×4
			1590	49×4, 69×4
			1610	46×4, 66×4
	Laser type		DFB	4×D4, 6×D4
			FP	4×F4, 6×F4
	Optical output power	(dBm)	2~4
	Optical connector type		LC/APC	Optical SC/APC, FC/APC
	RF operating bandwidth	(MHz)	5~42	NGB-9912,NGB9924/口-4
			5~65	NGB-9912,NGB9924/口-6
	Input level	(dBμV)	85~90
	Input Impedance	(Ω)	75
	Laser turn-on time	(us)	0.5~1.0
	Laser turn-off time	(us)	0.5~1.5
General feature	SNMP network management interface		RJ45
	Power supply	(V)	AC(150~265)V	AC220
			AC(35~90)V	AC60
	Power consumption	(W)	≤15
	Work temp.	(℃)	-40~60
	Storage temp.	(℃)	-40~65
	Relative humidity	(%)	5~59
	Size	( " )	9.4×9.4×5.9	(W)×(D)×(H)