Brought to you by;

APA Cables & Networks
MicroAnnex Adapter Kit

For the Xylogics Micro-Annex, Bay Networks 2000, and some NorTel terminal servers
(updated: Nov 07, 2005, 04:59 pm)

This page is not maintained by APA Cables and Networks. It is provided for the benefit of systems and network administrators.

When connected to a MicroAnnex, or Bay Networks 2000 console server port:

  • DB-25 DTE connectors have signal asserted (TD output from RJ-45) at DB-25 pin 2.
  • DE-9 DTE connectors have signal asserted (TD output from RJ-45) at DE-9 pin 3.

A DTE adapter, connected to a MicroAnnex port with an Ethernet cable appears to be a DTE device.

The entire MicroAnnex Kit (part number: 24490-Annex-Kit) includes one each of everything shown here. The individual APACN part numbers for each part of the kit are shown in red below.

MicroAnnex Console Adapters
(The kit contains one of each adapter. Default case color is grey.)

  • AFDCE - 24490-38 - female DB-25, signal to pin 3
  • AFDTE - 24490-35 - female DB-25, signal to pin 2
  • AFMOD - 24490-37 - female DB-25, signal to pin 3, pins 6, 8 tied
  • AMDCE - 24490-39 - male DB-25, signal to pin 3
  • AMDTE - 24490-36 - male DB-25, signal to pin 2
  • AMMOD - 24490-40 - male DB-25, signal to pin 3, pins 6, 8 tied

  • AFDCE91 - 24490-44 - female DE-9, signal to pin 2
  • AFDCE92 - 24490-45 - female DE-9, signal to pin 2, pins 1, 6 tied
  • AFDCE93 - 24490-46 - female DE-9, signal to pin 2, DSR to pin 1
  • AFDTE91 - 24490-43 - female DE-9, signal to pin 3
  • AMDCE91 - 24490-42 - male DE-9, signal to pin 2
  • AMDTE91 - 24490-41 - male DE-9, signal to pin 3

Refer to the Annex hosts-to-adapter page to determine which adapters to use when connecting to various devices. For more information about the adapters and cables, refer to the Annex Console Connection Guide.

In general, Annex and micro Annex teminal servers will send Serial Break when they are powered off. After Bay Networks bought the product line, Bay fixed this problem, calling the new model the Bay 2000. If you are concerned about Serial BREAK at your site, you may want to refer to our Serial BREAK hardware testing to find out which hardware devices do or do not send Serial BREAK at inappropriate times.

Micro Annex Console Cables

  • Micro Annex-end RJ-45 has a black boot
  • non-Micro Annex-end RJ-45 has an orange boot
  • The MMJ doesn't get a boot.

Micro Annex to Cisco Console (RJ45-to-RJ45) - 24490-52

Micro Annex to U.S. Robotics (RJ45-to-RJ45) - 24490-51

Micro Annex to DEC console (RJ45-to-MMJ) - 24490-53

Ethernet Cable, 10' long (RJ45-to-RJ45, white cable with black boots.) - 24490-21

This is the end of the components included in the MicroAnnex Kit.

The information below is provided for information only.

Adapter Shell Color

You can purchase the any of the adapter series shown above from APA Cables & Networks (, by asking for the part number (shown in red) above. Try contacting Steve Vacik (1-800-422-2537) for a price quote or information. If you want to specify a different case color than the default, us the APACN part number, followed by a shell-collor suffix:

Colors: BK = black, GN = green, RD = red, YL = yellow, BL = blue, GY = grey

So, the part number AFDTE91-GN would be the DE-9 female DTE adapter, with a green plastic shell, wired for MicroAnnex console ports.

APA Cables ∓ Networks also sells adapters and adapter kits for other RJ-45 formats, including the Cisco, Xyplex/iTouch/MRV Communications, and IOLAN Rack+ terminal server families. APA Cables ∓ Networks uses different default colors to make it easier to visually identify the different RJ-45 wiring formats.

For basic RS-232 troubleshooting info, view my Minor Scroll of Console Knowledge

NOTICE: Most of the pages, articles, and tutorials on this website are copyrighted works. You may make 'deep links' to various pages. (If you let me know which page(s) you are linking to, I'll let you know if I move the page(s) during updates.) Please send me email if you wish to republish any material, or use it on your own website.

Made with Nvu

Copyright 1996-2007, David K. Z. Harris, N6UOW   View David K. Z. Harris's profile on
Questions? Comments? Additions? Email consoles at
(Don't harvest my address, I don't want SPAM!)
How does he do it? And Why?