SmartEdge 600 Router Hardware Guide
The SAR devices also support enhanced queuing and shaping functions
for more granular control over traffic management with two, four, or eight
distinct CoS queues for each ATM PVC and allow a mix of priority- and
class-based queuing for each ATM PVC. These additional capabilities
allow the card to support subscriber circuits. For information about ATM
PVC and traffic management support, see related documentation at
https://ebusiness.ericsson.net.
This card is the same size as all other SmartEdge line cards and occupies
a single slot in the chassis.
Table 93 1-Port Enhanced ATM OC-12c/STM-4c IR Card Specifications
Specification Value
General
Number of ports
(1)
1
Speed 622.08 Mbps
Protection (facility) 1+1 APS—Bidirectional or unidirectional; revertive or
nonrevertive switching
Interface type Telcordia IR-1, SDH/STM-4 S-4.1
Link power budget
(2)
12 dB
Nominal wavelength
1310 nm
Connector type LC
Cable type SMF
Compliance Telcordia GR-253, ANSI T1.102, ITU G.957
Transmitter
Optical output power –8.0 dBm (max)
–15.0 dBm (min)
Center wavelength range
1274 to 1356 nm
Extinction ratio 8.2 dB (min)
Spectral width (RMS) 2.5 nm (max)
Receiver
Wavelength range
1274 to 1356 nm
Minimum sensitivity –28 dBm
Overload level –8.0 dBm (min)
(1) Each optical port has separate connectors for the transmit (Tx) and receive (Rx) circuits.
(2) The link power budget is calculated using (minimum output power) – (minimum sensitivity) – (optical path power
penalty); the power penalty is 1.
120 27/153 30-CRA 119 1170/1 Uen A | 2010-04-09
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