Difference between revisions of "S+RJ10 general guidance"

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[https://mikrotik.com/product/s_rj10 MikroTik S+RJ10] is a unique 6-speed RJ-45 SFP+ module that is based on a Marvell 88X3310P transceiver. It offers up to 10 Gbps speeds using twisted-pair copper cables. All of the current MikroTik  
 
[https://mikrotik.com/product/s_rj10 MikroTik S+RJ10] is a unique 6-speed RJ-45 SFP+ module that is based on a Marvell 88X3310P transceiver. It offers up to 10 Gbps speeds using twisted-pair copper cables. All of the current MikroTik  
devices that have an SFP+ cage support S+RJ10 module. This article serves as a guideline of the S+RJ10 usage in MikroTik devices with passive and active cooling.
+
devices that have an SFP+ cage support the S+RJ10 module. This article serves as a guideline of the S+RJ10 usage in MikroTik devices with both passive or active cooling.
  
 
== General Guidance ==
 
== General Guidance ==
 
==== Product specification ====
 
==== Product specification ====
The average power consumption of the transceiver is 2.7 W (10GBASE-T, 30 m link). The operating temperature is 0 to +70 C, but the transceiver itself can heat up to 90C.
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The average power consumption of the transceiver is 2.7 W (10GBASE-T, 30 m link) which is relatively high comparing with [https://mikrotik.com/product/Splus85DLC03D S+85DLC03D] optical module with maximum 0.8W power consumption. The operating temperature is 0 to +70 C, but the transceiver itself can heat up to 90 C.
  
 
==== S+RJ10 Positioning in devices ====
 
==== S+RJ10 Positioning in devices ====
  
Due highly operating temperatures, we are recommending to use S+RJ10 transceivers with optical transceiver or unused SFP+ interface in between them. Take a look on the transceivers capable distance [https://wiki.mikrotik.com/wiki/MikroTik_SFP_module_compatibility_table#S.2BRJ10 comparison table].
+
Due to high operating temperatures, it is recommended to use S+RJ10 transceivers while optical transceiver or an unused SFP+ interface is in between them. Take a look on the transceivers capable distance [https://wiki.mikrotik.com/wiki/MikroTik_SFP_module_compatibility_table#S.2BRJ10 comparison table].
 
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|[[file:20190129 125436.jpg|600px|center|thumb|alt=Alt text|Recommended S+RJ10 placement]]
 
|[[file:20190129 125436.jpg|600px|center|thumb|alt=Alt text|Recommended S+RJ10 placement]]
 
[[file:20190130 125357.jpg|600px|center|thumb|alt=Alt text|We do not recommend to place transceivers side by side]]
 
[[file:20190130 125357.jpg|600px|center|thumb|alt=Alt text|We do not recommend to place transceivers side by side]]
| As mentioned, S+RJ10 heat up more than regular transceivers and keeping them side by side will heat them more than necessary, especially in devices with 4 linear SFP cages. We are recommending to place S+RJ10 in every second interface with keeping optical transceiver or empty port in between them.
+
| As mentioned, S+RJ10 heat up more than regular transceivers and keeping them side by side can result in overheating, especially in devices with 4 linear SFP cages. It is recommended to place S+RJ10 in every second interface with keeping an optical transceiver or an empty port in between them.
 
|}
 
|}
  
 
{| class="wikitable"
 
{| class="wikitable"
 
|-
 
|-
| Even devices which come with separated SFP+ cages, for example CRS309-1G-8S+, we still do not recommend to use S+RJ10 transceivers beside each other. Use S+RJ10 in every second interface to avoid transceivers overheating which may cause unpredictable errors.
+
| Even when using devices that come with separated SFP+ cages, for example CRS309-1G-8S+, it is still not recommended to deploy the S+RJ10 transceivers beside each other. Use S+RJ10 in every second interface to avoid transceivers overheating which may cause unpredictable behavior.
 
|[[file:20190129 125301.jpg|600px|center|thumb|alt=Alt text|Recommended S+RJ10 placement]]
 
|[[file:20190129 125301.jpg|600px|center|thumb|alt=Alt text|Recommended S+RJ10 placement]]
[[file:20190129 125325.jpg|600px|center|thumb|alt=Alt text|We do not recommend to place transceivers side by side]]
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[[file:20190129 125325.jpg|600px|center|thumb|alt=Alt text|It is not recommended to place transceivers side by side]]
 
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|[[file:20190130 134631.jpg|600px|center|thumb|alt=Alt text|Recommended S+RJ10 placement]]
 
|[[file:20190130 134631.jpg|600px|center|thumb|alt=Alt text|Recommended S+RJ10 placement]]
 
[[file:20190130 134505.jpg|600px|center|thumb|alt=Alt text|We do not recommend to place transceivers side by side]]
 
[[file:20190130 134505.jpg|600px|center|thumb|alt=Alt text|We do not recommend to place transceivers side by side]]
| Devices which come with 4 or 8 block SFP+ cages are not exceptions. We are recommending to use one S+RJ10 transceiver peer 4xSFP+ cage block and avoiding placing them side by side. Keep at least one vertical row empty(without S+RJ10) after plugged S+RJ10 transceiver.
+
| Devices that come with 4 or 8 block SFP+ cages are not exceptions. It is recommended to use one S+RJ10 transceiver per 4xSFP+ cage block and avoided placing them side by side. Keep at least one vertical row empty(without S+RJ10) after plugged S+RJ10 transceiver.
 
|}
 
|}
  
== Using S+RJ10 side by side ==
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== Using the S+RJ10 Side by Side ==
  
It is not always possible to place transceivers in proper order. In cases where two or more S+RJ10 transceivers are plugged in beside, network administrator has to ensure additional cooling for such setup. It can be increased air flow or overall environment temperature refrigeration to keep transceiver temperature below recommended 90C.
+
There might be situations when it is not possible to use the recommended layout of the transceivers. In such cases where two or more S+RJ10 transceivers are plugged in beside one another, the network administrator has to ensure additional cooling. The air flow around the device should be increased or the overall ambient temperature should be lowered to keep the temperature of the transceivers within the recommended range.

Latest revision as of 10:54, 31 January 2019

Summary

MikroTik S+RJ10 is a unique 6-speed RJ-45 SFP+ module that is based on a Marvell 88X3310P transceiver. It offers up to 10 Gbps speeds using twisted-pair copper cables. All of the current MikroTik devices that have an SFP+ cage support the S+RJ10 module. This article serves as a guideline of the S+RJ10 usage in MikroTik devices with both passive or active cooling.

General Guidance

Product specification

The average power consumption of the transceiver is 2.7 W (10GBASE-T, 30 m link) which is relatively high comparing with S+85DLC03D optical module with maximum 0.8W power consumption. The operating temperature is 0 to +70 C, but the transceiver itself can heat up to 90 C.

S+RJ10 Positioning in devices

Due to high operating temperatures, it is recommended to use S+RJ10 transceivers while optical transceiver or an unused SFP+ interface is in between them. Take a look on the transceivers capable distance comparison table.

Alt text
Recommended S+RJ10 placement
Alt text
We do not recommend to place transceivers side by side
As mentioned, S+RJ10 heat up more than regular transceivers and keeping them side by side can result in overheating, especially in devices with 4 linear SFP cages. It is recommended to place S+RJ10 in every second interface with keeping an optical transceiver or an empty port in between them.
Even when using devices that come with separated SFP+ cages, for example CRS309-1G-8S+, it is still not recommended to deploy the S+RJ10 transceivers beside each other. Use S+RJ10 in every second interface to avoid transceivers overheating which may cause unpredictable behavior.
Alt text
Recommended S+RJ10 placement
Alt text
It is not recommended to place transceivers side by side
Alt text
Recommended S+RJ10 placement
Alt text
We do not recommend to place transceivers side by side
Devices that come with 4 or 8 block SFP+ cages are not exceptions. It is recommended to use one S+RJ10 transceiver per 4xSFP+ cage block and avoided placing them side by side. Keep at least one vertical row empty(without S+RJ10) after plugged S+RJ10 transceiver.

Using the S+RJ10 Side by Side

There might be situations when it is not possible to use the recommended layout of the transceivers. In such cases where two or more S+RJ10 transceivers are plugged in beside one another, the network administrator has to ensure additional cooling. The air flow around the device should be increased or the overall ambient temperature should be lowered to keep the temperature of the transceivers within the recommended range.