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- Description
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CPAK-100GE-LR4 is a Cisco 100GBASE-LR4 CPAK transceiver for 100 Gigabit Ethernet over standard single-mode fiber (G.652, 9-micron core) at distances up to 10 km. The minimum cabling distance is 2 m, set by IEEE 802.3ba.
The optics use four WDM wavelengths in the 1310 nm class at a nominal 25 Gbps per lane, with lanes at roughly 1294.5-1296.6, 1299.0-1301.1, 1303.5-1305.6 and 1308.1-1310.2 nm. Per-lane transmit power runs from -4.3 dBm to 4.5 dBm, and per-lane receive power from -10.6 dBm to 4.5 dBm.
CPAK-100GE-LR4 is the 100G Ethernet-only module and has an LC connector. CPAK-100G-LR4 is the dual-rate version that adds OTU4 and, from version 09, also uses LC with a removable LC-SC adapter, while earlier versions and CPAK-100G-LR4-2K use SC. Only PC or UPC duplex patch cords are supported.
Maximum power is under 8.0 W at 70°C. CPAK modules measure 11.6 x 34.8 x 101.2 mm (H x W x D), weigh about 127 g and are laser class 1. CPAK ports are used on the ASR 1000, ASR 9000, CRS-X, NCS 2000/4000/6000 and Nexus 7000/7700 platforms.
| Designation | CPAK-100GE-LR4 |
| Standard | 100GBASE-LR4 (100 Gigabit Ethernet only) |
| Reach | up to 10 km |
| Fiber | single-mode, G.652, 9-micron core |
| Connector | LC |
| Wavelengths | four lanes, 1310 nm class, 25 Gbps each |
| Transmit power per lane | -4.3 to 4.5 dBm |
| Receive power per lane | -10.6 to 4.5 dBm |
| Maximum power | under 8.0 W at 70°C |
| Module size | 11.6 x 34.8 x 101.2 mm |
| Weight | about 127 g |
| Laser class | 1 |