Nortel Networks 8672ATMM Manual de usuario descargar pdf (Pagina 42)

42 MDA and LED specifications

Table 4

OC-3c/STM-1 MDA specifications: 8672ATME and 8672ATMM modules (cont’d.)

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 OC-12c/STM-4 MDA uses SONET STS-3c/SDH STM-1 1300 nm

optical transceivers with duplex SC-type fiber-optic connectors and either

single mode fiber (SMF) or multimode fiber (MMF) cabling. The following

table describes the OC-12c/STM-4 MDA specifications.

Table 5

OC-12c/STM-4 MDA specifications: 8672ATME and 8672ATMM modules

Parameter

SMF description

MMF description

Physical media 9/125 µm 62.5/125 µm

Line code NRZ NRZ

Wavelength

1274 to 1356 nm 1274 to 1356 nm

Average transmit output power -8 to -15 dBm -14 to -20 dBm

Average receiver sensitivity -8 to -28 dBm -14 to -26 dBm

Distance 15 km

500 m

Input power 40 W 40 W

Thermal rating 138 BTU/hour maximum 138 BTU/hour maximum

The DS-3 MDA uses a 75 ohm coaxial cable. The following table

describes the DS-3 MDA specifications.

Table 6

DS-3 MDA specifications: 8672ATME and 8672ATMM modules

Parameter

Specification

Line rate 44 736 Mbit/s (20 ppm)

Impedence 75 ohms

Maximum length 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

NN46205-316 01.01 Standard

30 May 2008

1 2 ... 37 38 39 40 41 42 43 44 45 46

Comentarios a estos manuales

Sin comentarios

Nortel Networks 8672ATMM Manual de usuario Pagina 42

Comentarios a estos manuales