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
µ
m
62.5/125
µ
m
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
Copyright © 2008 Nortel Networks
.
Summary of Contents for Passport 8672ATME
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