Datasheet

5-27
Cisco ONS 15454 SDH Reference Manual, R7.0
October 2008
Chapter 5 Ethernet Cards
5.11.3 DWDM and CWDM GBICs
• Depth 2.56 in. (6.5 cm)
GBIC temperature ranges are:
• COM—commercial operating temperature range -5•C to 70•CC to 70•C
• EXT—extended operating temperature range 0•C to 85•CC to 85•C
• IND—industrial operating temperature range -40•C to 85•CC to 85•C
Figure 5-10 GBICs with Clips (left) and with a Handle (right)
5.11.3 DWDM and CWDM GBICs
DWDM (15454-GBIC-xx.x, 15454E-GBIC-xx.x) and CWDM (15454-GBIC-xxxx,
15454E-GBIC-xxxx) GBICs operate in the G-1K-4 card when the card is configured in Gigabit Ethernet
Transponding mode or in Ethernet over SDH mode. DWDM and CWDM GBICs are both wavelength
division multiplexing (WDM) technologies and operate over single-mode fibers with SC connectors. Cisco
CWDM GBIC technology uses a 20 nm wavelength grid and Cisco ONS 15454 DWDM GBIC technology
uses a 1 nm wavelength grid. CTC displays the specific wavelengths of the installed CWDM or DWDM
GBICs. DWDM wavelengths are spaced closer together and require more precise lasers than CWDM. The
DWDM spectrum allows for optical signal amplification. For more information on G-1K-4 card transponding
mode, see the Ethernet Card Software Feature and Configuration Guide for the Cisco ONS 15454, Cisco
ONS 15454 SDH, and Cisco ONS 15327.
The DWDM and CWDM GBICs receive across the full 1300 nm and 1500 nm bands, which includes all
CWDM, DWDM, LX/LH, ZX wavelengths, but transmit on one specified wavelength. This capability
can be exploited in some of the G-1K-4 transponding modes by receiving wavelengths that do not match
the specific transmission wavelength.
Note G1K-4 cards with the Common Language Equipment Identification (CLEI) code of WM5IRWPCAA
(manufactured after August 2003) support CWDM and DWDM GBICs. G1K-4 cards manufactured prior
to August 2003 do not support CWDM or DWDM GBICs.
The ONS 15454-supported CWDM GBICs reach up to 100 to 120 km over single-mode fiber and support
eight wavelengths as shown in Table 5-22.
Receiver
Clip
Handle
Transmitter
Receiver
Transmitter
51178
Table 5-22 Supported Wavelengths for CWDM GBICs
CWDM GBIC Wavelengths
1470 nm 1490 nm 1510 nm 1530 nm 1550 nm 1570 nm 1590 nm 1610 nm
Corresponding GBIC Colors
Gray Violet Blue Green Yellow Orange Red Brown
Band
47 49 51 53 55 57 59 61