Question 1

What is a Cisco 100G Optical Module?

Accepted Answer

Cisco 100G Optical Modules are hot-pluggable transceivers supporting up to 100 Gbps to enable high-speed fiber connectivity in Cisco switches and routers.

Question 2

What form factors do Cisco 100G Optical Modules come in?

Accepted Answer

Cisco offers 100G modules in QSFP28 and CFP2/CFP4 form factors to fit various platform densities and power requirements.

Question 3

What transmission distances are supported by Cisco 100G Optical Modules?

Accepted Answer

Cisco 100G SR modules support up to 100 meters on multimode fiber, LR up to 10 kilometers, ER up to 40 kilometers, and ZR up to 80 kilometers on single-mode fiber.

Question 4

Are Cisco 100G Optical Modules interoperable with third-party transceivers?

Accepted Answer

Cisco 100G modules are designed for full interoperability with Cisco hardware, but compatibility with third-party optics can vary and is not guaranteed by Cisco.

Question 5

How do I choose between Cisco 100G SR, LR, ER, and ZR modules?

Accepted Answer

Select SR for short-range multimode links, LR for up to 10 km single-mode, ER for up to 40 km, and ZR for up to 80 km, based on your required distance and fiber type.

Question 6

What fiber types are compatible with Cisco 100G Optical Modules?

Accepted Answer

Cisco 100G SR modules support OM3/OM4 multimode fiber, while LR, ER, and ZR modules require single-mode OS1/OS2 fiber.

Question 7

Do Cisco 100G Optical Modules support digital diagnostics monitoring (DDM)?

Accepted Answer

Yes, all Cisco 100G Optical Modules include digital diagnostics to monitor real-time power, temperature, and signal integrity.

Question 8

Can Cisco 100G Optical Modules be hot-swapped?

Accepted Answer

Yes, Cisco 100G Optical Modules are hot-swappable and can be inserted or removed without powering down the system.

Question 9

What wavelength specifications do Cisco 100G Optical Modules use?

Accepted Answer

Cisco 100G SR modules operate at 850 nm, LR modules at 1310 nm, ER at 1550 nm, and ZR optionally deploy DWDM wavelengths around 1550 nm.

Question 10

How do I verify compatibility of Cisco 100G Optical Modules with my switch?

Accepted Answer

Check Cisco’s hardware compatibility matrix or consult the data sheet for your switch model to confirm supported module types and software versions.

Question 11

What is the typical power consumption of Cisco 100G Optical Modules?

Accepted Answer

Power consumption varies by type: SR modules draw around 3.5 W, LR around 4.5 W, ER around 6.5 W, and ZR around 8.5 W.

Question 12

Are Cisco 100G Optical Modules covered under Cisco’s warranty?

Accepted Answer

Yes, Cisco 100G Optical Modules are covered by Cisco’s standard one-year hardware warranty, with options to extend support via Cisco SMARTnet.

Question 13

How do I install a Cisco 100G Optical Module?

Accepted Answer

Align the module’s handle with the port, gently slide it in until it clicks, then secure the fiber connectors, following Cisco’s installation guide.

Question 14

What environmental operating conditions do Cisco 100G Optical Modules require?

Accepted Answer

Cisco 100G modules operate between 0 °C and 70 °C, with relative humidity from 5% to 85%, non-condensing.

Question 15

How can I identify the correct Cisco part number for a 100G Optical Module?

Accepted Answer

Reference Cisco’s product catalog or data sheet which lists part numbers by form factor, distance (SR, LR, ER, ZR), and fiber type.

Cisco 100G Optical Modules

QSFP-100G-SR4-S= (100GBASE SR4 QSFP TRANSCEIVER MPO 100M OVER OM4 MMF)

QSFP-100G-LR4-S= (100GBASE LR4 QSFP TRANSCEIVER LC 10KM OVER SMF)

QSFP-100G-PSM4-S= (100GBASE PSM4 QSFP TRANSCEIVER MPO 500M OVER SMF)

QSFP-100G-ER4L-S= (100GBASE QSFP TRANSCEIVER 40KM REACH OVER SMF DUPLEX LC)

QSFP-100G-CWDM4-S= (100GBASE CWDM4 QSFP TRANSCEIVER LC 2KM OVER SMF)

CPAK-100G-SR10= (CPAK-100G-SR10 Transceiver module, 100m OM3 MMF)

CPAK-100G-SR4= (CPAK OPTICAL TRANSCEIVER MOD 100GBASE-SR4 100M OM4)

CPAK-100G-LR4= (CPAK-100G-LR4 TRANSCEIVER MOD 10KM SMF)

QSFP-40/100-SRBD= (100G and 40GBASE SR-BiDi QSFP Transceiver, LC, 100m OM4 MMF)

QSFP-100G-AOC5M (100GBASE QSFP Active Optical Cable, 5m)

QSFP-100G-SM-SR= (100GBASE CWDM4 LITE QSFP TRANS 2KM OVER SMF 10-60C)

CVR-CFP2-CPAK4= (CFP2 to CPAK adapter for 4x25G interface)

CVR-CFP2-CPAK10= (CFP2 TO CPAK ADAPTER FOR 10X10G INTERFACE)

QSFP-100G-AOC20M (100GBASE QSFP Active Optical Cable, 20m)

QSFP-100G-FR-S= (100G QSFP28 TRANS 100G-FR 2KM SMF DUPLEX LC)

CXP-100G-SR12 (CXP form factor, 100GBASE-SR10 compliant, no breakout)

CXP-100G-SR10= (CXP-100G-SR10 Transceiver module Spare)

CFP-100G-SR10= (100GBASE-SR10 CFP TRANSCEIVER 100M OM3 MMF)

CPAK-100G-PSM4= (CPAK optical transceiver module, PSM4 500m SMF, parallel)

CFP-100G-LR4= (100GBASE-LR4 CFP Module)

Questions & Answers

What is a Cisco 100G Optical Module?

What form factors do Cisco 100G Optical Modules come in?

What transmission distances are supported by Cisco 100G Optical Modules?

Are Cisco 100G Optical Modules interoperable with third-party transceivers?