Loopback Q-Fiber Loopback Q-fiber is a high class optical technology product looping fibre optic signal. It’s used for testing and renovating the network. The feedback signal is used for network fault diagnostics. Loopback patch cords are custom made, available in SM and MM versions and various types of connectors. We offer connectors SC, FC, LC and E2000. Our fibre optic cables used for loopback provide a compact structure and it’s according to Fast Ethernet, Fibre Channel, Gigabit Ethernet.

Properties:

▪ Compact housing,

▪ Cable diameters 0,9mm, 2,0mm, 2,8mm,

▪ Connectors SC, FC, LC, E2000 and others,

▪ Low insertion loss,

▪ High reflectance,

▪ LS0H cables,

▪ Ceramic connector ferrule (thermoplastic/ thermosetting for MTRJ and MPO),

▪ Compliance with following standards: ZN-05/TP SA-044, ZN-96/TPSA-07, PN-EN 50377, IEC 61754, IEC 61755,

▪ RoHS compliance.

Polishing standards:

▪ Flat,

▪ PC,

▪ UPC,

▪ APC 8°,

▪ APC 9°.

Application:

Telecommunication, CATV, Monitoring, Industry, Sieci (LAN, MAN, WAN), FTTX, Measuring applications.

Parameters:

Parameters	Ceramin ferrule (SC, ST, FC, LC, MU, E2000, DIN)
	MM/PC		SM/PC		SM/APC
	Standard	Premium	Standard	Premium	Standard	Premium
Maximum insertion loss [dB]	≤ 0,6 (grade BM)	≤ 0,25 (grade B)	≤ 0,5 (grade C)	≤ 0,25 (grade B)	≤ 0,5 (grade C)	≤ 0,25 (grade B)
Typical insertion loss [dB]	≤ 0,35 (grade BM)	≤ 0,12 (grade BM)	≤ 0,25 (grade C)	≤ 0,12 (grade B)	≤ 0,25 (grade C)	≤ 0,12 (grade B)
Reflection [dB]	≥ 20 (grade 2M)	≥ 26 (grade 4)	≥ 45 (grade 2)	≥ 45 (grade 2)	≥ 65 (grade 1)	≥ 65 (grade 1)
Radius of curvature [mm]	5 ÷ 30 (grade D)	5 ÷ 30 (grade C)	5 ÷ 30 (grade C)	7 ÷ 25 (grade B)	5 ÷ 12 (grade C)	5 ÷ 12 (grade B)
Apex offset [μm]	0 ÷ 50 (grade D)	0 ÷ 30 (grade C)	0 ÷ 50 (grade C)	0 ÷ 50 (grade B)	0 ÷ 50 (grade C)	0 ÷ 50 (grade C)
Maximum angle error [ ]	0,6 (grade D)	0,3 (grade C)	0,3 (grade C)	0,2 (grade B)	0,3 (grade C)	0,2 (grade B)
Fiber height* [nm]	-100 ÷ 100** (grade D)	-100 ÷ A** (grade C)	-100 ÷ A** (grade C)	-60 ÷ A** (grade B)	-100 ÷ A** (grade C)	-60 ÷ A** (grade B)

* negative value indicates the extension of a fibre
** calculated from the formula based on other geometric parameters, see technical requirements at www.dllpartners.de (or www.dll.com.pl)

Photos:

 

How to order:

Files to download: