![](/images/new-backgrounds/1203542/20354283x1.webp)
42MDA and LED specifications
Table 4
Parameter | SMF description | MMF description |
|
|
|
Distance | 15 km | 2 km |
|
|
|
Input power | 40 W | 40 W |
|
|
|
Thermal rating | 138 BTU/hour maximum | 138 BTU/hour maximum |
|
|
|
The
Table 5
Parameter | SMF description | MMF description |
|
|
|
Physical media | 9/125 ∝m | 62.5/125 ∝m |
|
|
|
Line code | NRZ | NRZ |
|
|
|
Wavelength | 1274 to 1356 nm | 1274 to 1356 nm |
|
|
|
Average transmit output power | ||
|
|
|
Average receiver sensitivity | ||
|
|
|
Distance | 15 km | 500 m |
|
|
|
Input power | 40 W | 40 W |
|
|
|
Thermal rating | 138 BTU/hour maximum | 138 BTU/hour maximum |
|
|
|
The
Table 6
Parameter
Line rate
Impedence
Maximum length
Specification
44 736 Mbit/s (20 ppm)
75 ohms
450 feet (135 m)
LEDs
The MDAs have two bicolor LEDs on each port: one marked as TX (transmit) and the other as RX (receive).The following table describes the MDA LED indications.
Nortel Ethernet Routing Switch 8600
Installation — Media Dependent Adapters for the 8672ATME and 8672ATMM Modules
30 May 2008