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SK202 Specification

3

of

3

Fosc

Carrier Frequency

60.3

60.4

60.5

GHz

* when power supply is 12V and Ethernet is active.

7. Auto-negotiation

The Ethernet PHY supports 1Gbps, 100Mbps and 10Mbps speeds. In order for

two Ethernet modules to communicate correctly, care must be taken that the PHY on
both modules negotiate the same speed. The auto-negotiation is always enabled on the
Realtek PHY. It takes place independently between a module and the device
connected on its RJ45 port. It is the responsibility of the application to ensure the
auto-negotiation result is the same for both Ethernet modules.

For example, if one module is connected to a 100Mbps modem, the PC 

connected on the other module should be configured to guarantee the auto-negotiation
result is also 100Mbps.

More details are available in the User Manual.

8. Order Information

Part
number

Description

SK202A

GigE contactless module with Realtek RTL8211FS, Port A

Original version

SK202B

GigE contactless module with Realtek RTL8211FS, Port B

Original version

SK202AC

GigE contactless module with Realtek RTL8211FS, Port A

Commercial version

SK202BC

GigE contactless module with Realtek RTL8211FS, Port B

Commercial version

SK202AI

GigE contactless module with Realtek RTL8211FSI, Port A

Industrial version

SK202BI

GigE contactless module with Realtek RTL8211FSI, Port B

Industrial version

NOTE:

Port A:

with vertical polarized horn antenna for transmitting and horizontal

polarized horn antenna for receiving.

Port B:

with horizontal polarized horn antenna for transmitting and vertical

polarized horn antenna for receiving.

Revision History

Date

Version

Changes

OCT 28 2020

2.0

Update electrical characteristics

NOV 11 2019

1.6

First Draft, based on SK20x_SPEC_1.3 version

Summary of Contents for SK202 Series

Page 1: ...urveillance c Ÿ Contactless Etherne 4 Block diagram Board outlook 1 of SK202 contactless connectivity ules with H V horn antenna and G PHY to ac GHz millimeter Wave RF signal conversion Ethernet Connector supporting 10 100 1000Ba eading edge ST60A2 mmW RF transceiver an mission of the corresponding SGMII signal ove nsceiver with ST60A2 ort range contactless connectivity preferred 3 ntal transmissi...

Page 2: ... Operating Temperature for SK TA Ambient Operating Temperature for SK TJ Maximum Junction Temperature TSTG Storage Temperature 2 of Unit mm window should be added for microwave signa itive materials can be used to fill the window B MICRO B socket are connected together T sed to supply the power Please do not connec installation distance A is at least 1 cm the imum is 5 cm 40 50 High temperature di...

Page 3: ...100Mbps More details are available in the User Manual 8 Order Information Part number Description SK202A GigE contactless module with Realtek RTL8211FS Port A Original version SK202B GigE contactless module with Realtek RTL8211FS Port B Original version SK202AC GigE contactless module with Realtek RTL8211FS Port A Commercial version SK202BC GigE contactless module with Realtek RTL8211FS Port B Com...

Page 4: ... a new scene for network connection applica PHY chip and ST60 A2 a millimeter wav e simply connected to the existing Ethernet r that both SK202 modules must at the same sp s document ematic diagram of using SK202 to connect IP camera onnected to the network and power supply but otiation rate of the PC side and the router side a it network the rate automatically negotiated w rate on the router side...

Page 5: ... contact connector dded in the SK202 is set in Auto negotiation m Mbps In order for the SK202A and SK202B te at the same speed The Green LED on the R Gbps communication is established between th nge LEDs blinks when the communication is a K202 work independently and each one it is connected to So two independent negoti two devices such as a laptop and a camera e two auto negotiation results will d...

Page 6: ...egotiation on the laptop one can ensu p at the same speed than the one between th egotiation is required when the 2 devices do not adverti maximum speed capability ce a switch operating at the same speed than t uto negotiation result will be the same on both Auto negotiation result controlled using a switch impact of SK202 on network transmission it arty tool IPERF3 Only need two network cabl ure ...

Page 7: ...t o change the SK202 modules to the same command for compar 4 of 6 can download from the address as below wnload php Iperf3 test Schematic diagram with SK202 onnect to the network The network adapters of Gigabit Ethernet controller IP address of PC A PC B is set to 192 168 10 3 Please use at least C mand iperf3 server and iperf3 udp bandwidth 1G c len 63k nds through UDP protocol with 1G bandwidth...

Page 8: ...am with RJ45 cable agate correctly from one module to the other metallic obstacle in a Keep Out Area KOA A is a parallelepiped of 22 mm width and 9 m between the antennae usually 30 mm as been defined in orange on the figures b ea may have an impact on the millime elepiped of 60 mm width and height The le nae usually 20 mm mponent a metal part a fastener a screw s tive surface resides in this volu...

Page 9: ... between the Horn antennae body and the ABS housing The opening should be minimum 22 mm long and 9 mm wide centered on the 2 antennae but it can be enlarged Should the casing be placed further than 2 7mm from the PCB the opening dimensions will have to be adjusted to prevent reflections This is summarized in the figure below Figure 9 Openning in a metallic housing Revision History Date Version Cha...

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