Specifications

4-83
Cisco ONS 15454 Troubleshooting and Maintenance Guide
November 2001
Chapter 4 Card Reference
OC48 ELR/STM16 EH 100 GHz Cards
4.27 OC48 ELR/STM16 EH 100 GHz Cards
Thirty-seven distinct OC48 ITU 100GHz dense wavelength division multiplexing (DWDM) cards
provide the ONS 15454 DWDM channel plan. Each OC-48 DWDM card has one SONET OC-48/SDH
STM-16 port that complies with Telcordia, GR-253 SONET, and the International Telecommunication
Union’s ITU-T G.692, and ITU-T G.958.
The port operates at 2.49 Gbps over a single-mode fiber span. The card carries VT, concatenated, and
non-concatenated payloads at STS-1, STS-3c, STS-6c, STS-12c, or STS-48c signal levels. Figure 4-29
shows the OC48 ELR/STM16 EH 100 GHz faceplate and a block diagram of the card.
Figure 4-29 OC48 ELR/STM16 EH 100 GHz faceplate and block diagram
Nineteen of the cards operate in the blue band with spacing of 100 GHz on the ITU grid standard G.692
and Telcordia GR-2918-CORE, issue 2 (1528.77 nm, 1530.33 nm, 1531.12 nm, 1531.90 nm, 1532.68
nm, 1533.47 nm, 1534.25 nm, 1535.04 nm, 1535.82 nm, 1536.61 nm, 1538.19 nm, 1538.98 nm, 1539.77
nm, 1540.56 nm, 1541.35 nm, 1542.14 nm, 1542.94 nm, 1543.73 nm, 1544.53 nm).
The other eighteen cards operate in the red band with spacing of 100 GHz on the ITU grid (1546.12 nm,
1546.92 nm, 1547.72 nm, 1548.51 nm,1549.32 nm, 1550.12 nm, 1550.92 nm, 1551.72 nm, 1552.52 nm,
1554.13 nm, 1554.94 nm, 1555.75 nm, 1556.55 nm, 1557.36 nm, 1558.17 nm, 1558.98 nm, 1559.79 nm,
1560.61 nm). These cards are also designed to interoperate with the Cisco ONS 15216 DWDM solution.
uP bus
uP
Flash
RAM
BTC
ASIC
Optical
Transceiver
OC-48
Main SCI
Protect SCI
STS-48
61613
Mux/
Demux
B
a
c
k
p
l
a
n
e
FAIL
ACT/STBY
SF
TX
1
RX
OC48ELR
STM16EH
100GHz
1560.61