TOPSTAR TECHNOLOGY INDUSTRIAL CO., LIMITED
Our Vision--Create Topstar’s home and strive to be a respected Century Enterprise！ Our Mission--Better Communication, Better World ! Our Values--Struggle happily, to be honesty and gratitude, then to
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Module Transceiver QSFP-DD QSFP 400G LWDM4 40KM SFP Gigabit Ethernet Switch
Module Transceiver QSFP 400G SFP Gigabit Ethernet Switch
400G QSFP-DD transceivers are defined by IEEE 802.3bs Ethernet standard and is an evolution of 100G QSFP28 transceivers. On 400G QSFP-DD 400G Ethernet is achieved with increased data throughput while maintaining the same bandwidth on per channel basis. This is due to 100G QSFP28 using NRZ (Non-Return-to-Zero) encoding and 400G QSFP-DD using PAM4 (Pulse Amplitude Modulation 4 levels) encoding. More on that in 100G Single Lambda (100G PAM & Single Lambda).
Parameters
| Fiber Type | SMF |
| Connector | LC |
| Lasers and TIA | EML APD |
| Tx Power | 0.4 to 6.5 dBm |
| Rx Sensitivity | -29 to -15.1 dBm |
| Extinction Ratio | 6 dB |
| Power Consumption | <10 W |
| Single Power Supply | 3.3 V |
PRODUCT FEATURES
FAQ
Q1. Are your transceiver modules compatible with Cisco?
A1: Yes, Topstar transceivers can compatible with Cisco. All the brand Topstar's SFP compatible as the fellowing:Cisco, Nortel, Juniper, 3COM, H3C, Alcatel-lucent, FOUNDRY, D-Link, EXTREME, Ruijie, NETGEAR, ZTE, Enterasys, ZyXEL, Linksys, Ericsson, DCN, Allied, SMC, Brocade, Force10, Hirschmann, Planet, Adtran, ASNTE, Trendnet, BDCOM, BLADE, BITWAY, Telco, Feixun...etc.
Q2. How does your company do regarding quality control?
A2: Every single optic individually tested in our test center , and also tested for compatibility on a variety of different brands of network equipment.
Q3. What are the trade terms?
A3: Lead Time: we keep 40,000pcs SFP in stock ready to ship.
Payment term: T/T, Western Union, Alipay, Paypal, L/C and so on for your option.
Q4. What is operating temperature range of optical modules?
A4: Commercial temperature range(COM) : 0 to 70°C(32 to 158°F)
Storage temperature range:-40 to +85°C(-40 to 185°F)
We can supply according to your request.