Comparison of J9281B VS J9281D

      J9281B and J9281D are both SFP+ DAC cables, they have almost the same specifications and characteristics, resulting in users easy to make a difficult choice. Motel Labs to product description, appearance, onboard identification of the three aspects of the comparison, to facilitate further understanding of the differences between the two.
1. Product description
      In 2015, HPE acquired Aruba Networking (now HPE Aruba Networking), so there is a brand distinction between HPE J9281B, HPE Aruba J9281D, the specific description is as follows:

Table 1 HPE J9281B and HPE Aruba J9281D brand differentiation

      J9281B/J9281D specific compatible models, system versions are not summarized here, interested please move to the official website of Aruba to read the relevant documents (URL: https://www.arubanetworks.com/techdocs/Switches/xcvrs/xcvr_guide/Content/Chp_sfp_plus/sfp-dac-mod-spe-com.htm )

2. Module Appearance
      J9281B, J9281D sample module appearance comparison, or due to different manufacturers, there are some differences between the two.

Table 2 Comparison of the appearance of the J9281B and J9281D sample modules

3. Module identification
      Connect J9281B and J9281D to Aruba 8320 JL479A switch to check the module working status and identification information.
      J9281B, J9281D in Aruba 8320 JL479A switch can be normal LINK UP, can be recognized by the switch, such as the module type, model, serial number, etc., no alarm information.

Table 3 Module Recognition Information

      HPE J9281B refers to SFP+ DAC cable version B, HPE ARUBA J9181D refers to SFP+ DAC cable version D. J9281D is backward compatible with J9281B, the main difference between the two is the software version.
      Moduletek can provide J9281B/J9281D compatible products, welcome to buy.
      If you have any questions about the above content, you can contact us by Email : web@moduletek.com