QSFP-100G-SM-SR – 100G CWDM4 Lite QSFP – LC SMF – 2km Reach
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QSFP-100G-SM-SR Description
The QSFP-100G-SM-SR is a Cisco 100GBASE CWDM4 Lite QSFP transceiver for 100G links of up to 2 km over duplex single-mode fiber inside data centers. The module uses four wavelengths (1271, 1291, 1311 and 1331 nm) on duplex LC connectors, has a 4.2 dB optical link budget and draws up to 3.5W. The module is rated only for +10 to +60°C operation and interoperates with 100G CWDM4 modules at the far end.
Quick Specs
|
Parameter |
Specification |
|---|---|
|
Product ID |
QSFP-100G-SM-SR |
|
Product type |
100GBASE CWDM4 Lite QSFP transceiver |
|
Cisco ordering description |
100GBASE CWDM4 Lite QSFP Transceiver, 2km over SMF, 10-60C |
|
Host interface |
Cisco 100G QSFP port |
|
Connector type |
Duplex LC |
|
Fiber type |
Single-mode fiber |
|
Fiber specification |
G.652 |
|
Data rate |
100 Gigabit Ethernet |
|
Maximum cable distance |
2km |
|
Transmit and receive wavelengths |
Four lanes: 1271, 1291, 1311, and 1331 nm |
|
Optical link budget |
4.2 dB |
|
Power consumption |
3.5W maximum |
|
Operating temperature |
+10 to +60°C |
Application Scenarios
In a temperature-controlled data hall, the module links 100G QSFP ports on leaf and spine switches over duplex LC single-mode fiber of up to 2 km.
Where a link crosses one or more structured-cabling patch panels, the 4.2 dB link budget of the module covers the added connector loss on a duplex single-mode path.
Product Comparison
|
Parameter |
QSFP-100G-SM-SR |
QSFP-100G-LR-S | ||
|---|---|---|---|---|
|
Maximum cable distance |
2km |
2km |
2km |
10km |
|
Wavelength |
1271, 1291, 1311, and 1331 nm |
1271, 1291, 1311, and 1331 nm |
1304.5 to 1317.5 nm |
1304.5 to 1317.5 nm |
|
Signal method |
Four wavelengths with internal multiplexing and demultiplexing |
Four wavelengths with internal multiplexing and demultiplexing |
Single wavelength with onboard PAM4 modulation and FEC |
Single wavelength with onboard PAM4 modulation and FEC |
|
Optical link budget |
4.2 dB |
Not published |
Not published |
Not published |
|
Operating temperature |
+10 to +60°C |
0 to 70°C |
0 to 70°C |
0 to 70°C |
|
Maximum power consumption |
3.5W |
3.5W |
4.3W |
4.0W |
QSFP-100G-SM-SR is the CWDM4 Lite version of QSFP-100G-CWDM4-S: the two use the same four wavelengths (1271, 1291, 1311 and 1331 nm), reach 2 km on duplex LC single-mode fiber at 3.5W and interoperate, but QSFP-100G-SM-SR operates only from +10 to +60 degrees C and has a 4.2 dB link budget. Sites outside that range, or links with heavy patch-panel loss, order QSFP-100G-CWDM4-S, rated 0 to 70 degrees C. QSFP-100G-FR-S also reaches 2 km but on a single wavelength with PAM4 and FEC at 4.3W, so it belongs where the far end is an FR1 optic. Links up to 10 km move to QSFP-100G-LR-S, which draws 4.0W.
Ordering Checklist
- Host support: Confirm the target switch or router, line card and QSFP28 port are on Cisco’s 100 Gigabit Ethernet Transceiver Modules Compatibility Matrix for this optic. A host can reject an optic that fits the cage but is not on its compatibility list.
- Fiber and connector: Use G.652 single-mode fiber with duplex LC patch cords, PC or UPC polish. The optic has LC ports, and the connector rule for this family excludes APC jumpers.
- Temperature range: Keep the install location within +10 to +60 degrees C. This is the one QSFP-100G part with a narrower range than the standard 0 to 70 degrees C.
- Far-end optic: Put QSFP-100G-SM-SR or QSFP-100G-CWDM4-S on the other end. These two are documented as interoperable; other 100G optics use a different optical profile.
Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Product ID | QSFP-100G-SM-SR | Product type | 100GBASE CWDM4 Lite QSFP optical transceiver |
| Cisco ordering description | 100GBASE CWDM4 Lite QSFP Transceiver, 2km over SMF, 10-60C | Host interface | Cisco 100G QSFP port |
| Connector type | Duplex LC | Fiber type | Single-mode fiber |
| Fiber specification | G.652 | Data rate | 100 Gigabit Ethernet |
| Maximum cable distance | 2km | Transmit wavelength range | Four lanes: 1271, 1291, 1311, and 1331 nm |
| Receive wavelength range | Four lanes: 1271, 1291, 1311, and 1331 nm | Optical link budget | 4.2 dB |
| Transmit power per lane | -6.9 to +2.5 dBm | Receive power per lane | -11.1 to +2.5 dBm |
| Maximum power consumption | 3.5W maximum | Pull tab color | Green |
| QSFP connector module dimensions | 13.5 x 18.4 x 72.4 mm maximum outer dimensions | QSFP connector module weight | 100 grams or less |
| Operating temperature | +10 to +60°C | Storage temperature | -40 to +85°C |
| Standards references | SFF-8665, SFF-8636, IEEE 802.3-2022, IEEE 802.3ba, IEEE 802.3bm | Safety classification | Laser Class 1 |
| Compliance reference | RoHS 6 |
Quality Certifications
Customer Reviews
Questions & Answers
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How far can QSFP-100G-SM-SR reach over single-mode fiber?
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What operating temperature range does QSFP-100G-SM-SR support?
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Can QDD-2X100-CWDM4-S break out to two QSFP-100G-SM-SR modules?
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What optical link budget does QSFP-100G-SM-SR give for patch-panel loss?
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What is the receive power range of QSFP-100G-SM-SR?
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What is the CWDM4-Lite name for QSFP-100G-SM-SR in Cisco documents?
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