Home

 

0845 365 5061

Back

 

 info@bbnint.co.uk

Optical Networking Distance Codes

Single-mode distances
Distance (Km) ≤2 15   40 60   120   160
λ (nm) 1310 1310 1550 1310 1550 1310 1550
SONET Short reach Intermediate reach Long reach Very long reach
OC-1 SR IR-1 IR-2 LR-1 LR-2 LR-3 VR-1 VR-2 VR-3
OC-3 SR LR-1 LR-2 LR-3 VR-1 VR-2 VR-3    
OC-12 SR IR-1 IR-2 LR-1 LR-2 LR-3 VR-1 VR-2 VR-3
OC-48 SR IR-1 IR-2 LR-1 LR-2 LR-3 VR-1 VR-2 VR-3
OC-192 - IR-1 IR-2 LR-1 LR-2 LR-3 VR-1 VR-2 VR-3
SDH (STM-X) Intra -office Short haul Long haul N/A Very long Ultra long
STM-1 I-1 S-1.1 S-1.2 L-1.1 L-1.2 L-1.3   - -
STM-4 I-4 S-4.1 S-4.2 L-4.1 L-4.2 L-4.3   - -
STM-16 1-16 S-16.1 S-16.2 L-16.1 L-16.2 L-16.3   V -16.3 U-16.3
STM-64 I-64 S-64.1 S-64.2 L-64.1 L-64.2 L-64.3   V-64.3  

 

Multi-Mode Distances
ISO Distance
(m)
OM1 33
OM2 82
OM3 300

 

Power
Power
(mW)		 Power
(dBm)
1,000 +30
100 +20
10 +10
5 +7
2 +3
1 0
0.1 -10
0.01 -20
0.001 -30
0.0001 -40

Clay House, Harnage, Shropshire, SY5 6EF  Tel: 0845 3655061,  Fax: 07005 982624,  Email: info@bbnint.co.uk