Card Descriptions
6.7 4-Port POS OC-48c/STM-16c Card
The 4-port POS OC-48c/STM-16c card functions as a network uplink module in
edge routing and BRAS applications. This card is a PPA2-based card and has
a minimum memory capacity of 1 GB.
This POS OC-48c/STM-16c card supports PPP, HDLC, FR encapsulations,
MDRR, and POS LAG features.
This card is the same size as all other SmartEdge line cards and occupies a
single slot in the chassis. This card requires a separate SFP transceiver for
each port.
The following types of SFP transceivers are supported on any of the ports:
• SONET OC-48/STM-16 SR-1—Short Reach
• SONET OC-48/STM-16 IR-1—Intermediate Reach
• SONET OC-48/STM-16 LR-2—Long Reach
Table 102 4-Port POS OC-48c/STM-16c Card Specifications
Specification SR-1 IR-1 LR-2
General
Number of ports
(1)
444
Speed 2488.32 Mbps 2488.32 Mbps 2488.32 Mbps
Protection (facility)
(2) (3)
• None
• 1+1 APS: Bidirectional;
revertive or nonrevertive
switching
• None
• 1+1 APS: Bidirectional;
revertive or nonrevertive
switching
• None
• 1+1 APS: Bidirectional;
revertive or nonrevertive
switching
Interface Telcordia SONET OC-48
SR-1 / SDH STM S-16
Telcordia SONET OC-48
IR-1 / SDH STM I-16
Telcordia SONET OC-48
LR-2 / SDH STM L-16.2
Link power budget
(4)
7.0 dB 12.0 dB 25.0 dB
Nominal wavelength
1310 nm 1310 nm 1550 nm
Connector type LC LC LC
Cable type SMF SMF SMF
Compliance SFF-8472 and INF-8074i
Telcordia GR-253, ITU
G.957
SFF-8472 and INF-8074i
Telcordia GR-253, ITU
G.957
SFF-8472 and INF-8074i
Telcordia GR-253, ITU
G.957
Transmitter
Optical output power –3.0 dBm (max)
–10.0 dBm (min)
0.0 dBm (max)
–5.0 dBm (min)
3.0 dBm (max)
–2.0 dBm (min)
Path penalty
––
2.0 dB (max)
Center wavelength range
1270 to 1360 nm 1270 to 1360 nm 1500 to 1580 nm
Extinction ratio 8.2 dB (min) 8.2 dB (min) 8.2 dB (min)
Side-mode suppression radio
–
30.0 dB (min) 30.0 dB (min)
12727/153 30-CRA 119 1170/1 Uen A | 2010-04-09
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