1.25G SFP DWDM 40km Transceiver

SKU: SFP-DWxx24-40DC

Product Highlights

Supports up to 1.25Gbps bit rates
Hot-pluggable SFP+ footprint
100GHz ITU, C Band DWDM Cooled EML laser and PIN photodiode, Up to 40km for SMF transmission
Compliant with SFP+ MSA and SFF-8472 with duplex LC receptacle
Compatible with RoHS
Single +3.3V power supply
Real Time Digital Diagnostic Monitoring

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SFP‑DWxx24‑40DC 1.25Gbps SFP DWDM Transceiver 40km Single‑Mode Fiber

The SFP‑DWxx24‑40DC is cost‑effective 1.25G SFP DWDM fixed‑channel optical transceiver, designed for gigabit‑rate DWDM transport applications. It works at 1.25Gbps, adopting **cooled EML TEC‑controlled laser transmitter plus PIN‑TIA receiver**, compliant with 100 GHz ITU‑T C‑Band DWDM grid covering 1528.77‑1563.86 nm ITU channels. Delivers stable 40‑kilometer transmission performance over G.652 single‑mode fiber. Hot‑pluggable standard SFP footprint with duplex LC receptacle, supports real‑time DDM / DOM digital diagnostic monitoring following SFF‑8472 specification. Powered by single +3.3 V supply, commercial operating temperature range 0℃ ~ +70℃. Meets Class‑I laser safety, SFP MSA and RoHS compliance. Well‑suited for gigabit DWDM multiplexing, SONET networks, bandwidth aggregation, ISP and metro telecom access optical links.

Technical Specification

Vendor Name	FIBERTOP	FIBERTOP Part Number(s)	SFP-DWxx24-40DC
Transceiver Type	EX	Reach	40km
Wavelength	DWDM	Form Type	SFP
Speed Description	1.25G	Media	SMF
Connector	Duplex LC	Extinction Ratio	> 8.2 dB
TX Power	-3 ~ 2 dBm	Receiver Sensitivity	< -24 dBm
Applications	1.25Gbps DWDM & SONET networks, Bandwidth aggregation, Metro access & ISP backhaul optical infrastructure	Environment	Operating: 0°C to 70°C

λC Wavelength Guide

ITU Channel Product Code	Frequency(THz)	Wavelength	ITU Channel Product Code	Frequency(THz)	Wavelength
17	191.7	1563.86	40	194.0	1545.32
18	191.8	1563.05	41	194.1	1544.53
19	191.9	1562.23	42	194.2	1543.73
20	192.0	1561.42	43	194.3	1542.94
21	192.1	1560.61	44	194.4	1542.14
22	192.2	1559.79	45	194.5	1541.35
23	192.3	1558.98	46	194.6	1540.56
24	192.4	1558.17	47	194.7	1539.77
25	192.5	1557.36	48	194.8	1538.98
26	192.6	1556.55	49	194.9	1538.19
27	192.7	1555.75	50	195.0	1537.40
28	192.8	1554.94	51	195.1	1536.61
29	192.9	1554.13	52	195.2	1535.82
30	193.0	1553.33	53	195.3	1535.04
31	193.1	1552.52	54	195.4	1534.25
32	193.2	1551.72	55	195.5	1533.47
33	193.3	1550.92	56	195.6	1532.68
34	193.4	1550.12	57	195.7	1531.90
35	193.5	1549.32	58	195.8	1531.12
36	193.6	1548.51	59	195.9	1530.33
37	193.7	1547.72	60	196.0	1529.55
38	193.8	1546.92	61	196.1	1528.77
39	193.9	1546.12

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