WiringOffice

The office desk cubby had three (3) blue CAT5 cables:

  1. Office #1
  2. Office "OffData" #2
  3. Office-to-MasterBR

The Office-to-MasterBR cable simply runs from the office box to the Master BR box on the North wall. Some thoughts:

  • I can simply put a blank wallplate on both Office and Master BR boxes and forget about it
  • I can use this this cable to "pass through" any circuit from the office, such as telephone and/or daisy-chain Ethernet
  • I can use this cable to supply a separate Ethernet connection to the Master BR by simply splicing to either Office #1 or Office #2 cable and let it terminate in the Master BR

The office sound system cabinet has two (2) white CAT5 cables, looking like they were add-ons:

  • Office #1 runs to the HKVision security camera DVR
  • Office #2 runs to the Honeywell VISTA security system box (but is not connected)

2025-02-28

  • With two CAT5 cables from the wiring closet available, I will be able to have the following configuration:
    • One (1) Telephone jack (using Blue and Orange pairs of the "Office" CAT5 cable)
    • Three (3) Ethernet jacks (using Green and Brown pairs of the "Office" CAT5 cable, and, using the Green and Brown pairs, and Blue and Orange pairs of the "OffData" CAT5 cable)
"OFFICE" CAT5 CABLE
PINTELEPHONE JACKETHERNET JACK #1
1(nc)Green/White
2Orange/WhiteGreen
3BlueBrown/White
4Blue/White 
5Orange 
6(nc)Brown
7  
8  

With no telephone provisioned on the "OffData" cable, I will have two Ethernet jacks, each using four (4) conductors. This will deviate from the 586A Standard that I am generally following, this way:

"OFFDATA" CAT5 CABLE
PINETHERNET JACK #2ETHERNET JACK #3
1Green/WhiteBlue/White
2GreenBlue
3Brown/WhiteOrange/White
4  
5  
6BrownOrange
7  
8  
  • With the discovery of a cable that runs from Office Desk Cubby to the Master BR North Wall, I have elected to daisy chain the "OffData" cable Ethernet jacks (#2 and #3) to the cable that runs to the Master BR North Wall, so the complete wiring for these jacks is:
"OFFDATA" CAT5 CABLE
 ETHERNET JACK #2ETHERNET JACK #3
PININCOMINGOUTGOINGINCOMINGOUTGOING
1Green/White Blue/White 
2Green Blue 
3Brown/White Orange/White 
4 Green Blue
5 Green/White Blue/White
6Brown Orange 
7 Brown/White Orange/White
8 Brown Orange
  • To activate the "pass through," a jumper plug for Jack #2 and Jack #3 on the office side are used, to connect the Master BR North Wall jacks.
  • As was done with the Main Master BR CAT5 cable, for the two Ethernet jacks (#2 and #3) that daisy-chain further down the line, I have configured an RJ45 plug for each jack that does two things:
    1. jumpers the pins downstream to the next jack
    2. prevents connection of two computers to the same CAT5e cable (by removing the jumper plug the downstream wiring is disconnected)
    • This jumper plug is configured thusly:
      • 1 connected to pin 5
      • 2 connected to pin 4
      • 3 connected to pin 7
      • 4 connected to pin 2
      • 5 connected to pin 1
      • 6 connected to pin 8
      • 7 connected to pin 3
      • 8 connected to pin 6
      • That is (using Green and Brown pairs, as an example):
PININCOMINGOUTGOING
1Green/White 
2Green 
3Brown/White 
4 Green
5 Green/White
6Brown 
7 Brown/White
8 Brown