China wholesale 25gbase-Lr - 25GBASE-LR SFP28 1310nm 10km Hi-Optel HSFP28-2321 module – Hi-optel

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China wholesale 25gbase-Lr - 25GBASE-LR SFP28 1310nm 10km Hi-Optel HSFP28-2321 module – Hi-optel Detail:

Descriptions

HSFP28-2321 is SFP28 module for duplex optical data communications support 25.78 Gb/s and 28.05 Gb/s data links. It is with the SFP+ 20-pin connector to allow hot plug capability. Digital diagnostic functions are available via an I2C. It has built-in dual clock and data recovery (CDR). This module is designed for single-mode fiber and operates at a nominal wavelength of 1310nm. The transmitter section uses a high performance 1310nm DFB laser and is a class 1 laser compliant according to International Safety Standard IEC-60825. The receiver section uses an integrated InGaAs detector pre-amplifier (IDP) mounted in an optical header and a limiting post-amplifier IC.

25G SFP28 LR 10KM Hi-Optel HSFP28-2321 module1

Features

● Compliant with MSA SFP+ Specification SFF-8402
● Monitoring Interface Compliant with SFF-8472
● Single +3.3V Power Supply
● Hot-Pluggable
● Built-in dual CDR
● Support 25.78 Gb/s and 28.05Gb/s Data Links
● Up to 10Km on 9/125um SMF
● Very low EMI and excellent ESD protection
● Operating Case Temperature: 0℃~+70℃
● Power Dissipation < 1.2W
● RoHS Compliant Products

25G SFP28 LR 10KM Hi-Optel HSFP28-2321 module0

Application

● 25GbE
● 32GFC
● Other Optical Links

Pin Description

Pin	Symbol	Name/Description	Ref
1	VeeT	Transmitter Ground(Common with Receiver Ground)	1
2	Tx Fault	Transmitter Fault. Low normal operation, High Fault indication
3	Tx Disable	Transmitter Disable. Laser output disabled on high or open	2
4	SDA	Module Definition 2.Data line for Serial ID	3
5	SCL	Module Definition 1.Clock line for Serial ID	3
6	MOD-ABS	Module Definition 0.Grounded within the module
7	RS0	Rate Select 0, optionally controls SFP28 module receiver. LVTTL Logic.	5
8	LOS	Loss of Signal indication. Logic 0 indicates normal operation.	4
9	RS1	Rate Select 1, optionally controls SFP28 module transmitter. LVTTL Logic.	5
10	VeeR	Receiver Ground(Common with Transmitter Ground)	1
11	VeeR	Receiver Ground(Common with Transmitter Ground)	1
12	RD-	Receiver Inverted DATA out.AC Coupled
13	RD+	Receiver Non-inverted DATA out.AC Coupled
14	VeeR	Receiver Ground(Common with Transmitter Ground)	1
15	VccR	Receiver Power Supply
16	VccT	Transmitter Power Supply
17	VeeT	Transmitter Ground(Common with Receiver Ground)	1
18	TD+	Transmitter Non-inverted DATA in.AC Coupled
19	TD-	Transmitter Inverted DATA in.AC Coupled
20	VeeT	Transmitter Ground(Common with Receiver Ground)	1

Notes:
1. Circuit ground is internally isolated from chassis ground. VeeR and VeeT may be internally connected within the SFP28 module.
2. Laser output disabled on TDIS >2.0V or open, enabled on TDIS <0.8V.
3. Should be pulled up with 4.7k – 10kohms on host board to a voltage between 2.0V and 3.6V.
4. LOS is open collector output. Should be pulled up with 4.7k – 10kohms on host board to a voltage between 2.0V and 3.6V. Logic 0 indicates normal operation; logic 1 indicates loss of signal.
5. Pulled low to VeeR or VeeT with a >30K resistor within the SFP28 module.

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