Wiring for Multiple Slave Sockets: Serial or Parallel

[Whimsical]

Hello,

Just a simple question regarding the wiring of additional slave sockets to Master socket. I have 3 extentions to add in various rooms but was wondering if this could be done in parallel rather than serial?

By parallel I mean all slaves are connected at the master, by serial I mean that there is one connection to the master and the slaves are daisy chained together

i.e. Parallel:

Slave
l
l
Master-----Slave
l
l
Slave

rather than Serial:

Master----Slave-----Slave-----Slave

The master will be connected to a network switch via a built in adsl filter on the master plate (node zero). Not sure if this is important.

If parallel is OK are there any down sides? Parallel is just more practical from a cabling perspective. That said is it possible to have a mixture of parallel and serial (ie. two slaves from master and an additional slave from one of the new slaves)?

 

[kbdiy]

Wired in parallel - but the cabling can be 'daisy-chained'

 

[bernardgreen]

Either way and a mix of them can be used for telephone service.

If you have Broadband then it should be separated from the telephone cabling at the master socket using a filtered front plate.

 

[Whimsical]

Excellent, Many thanks both

 

[EightyTwo]

Other people might refer to these connection methods as "star" and "daisy-chain/bus".

The only thing of which you need to be careful in the star configuration is that you can fit all three sets of wires into the IDC terminals (a.k.a. Krone terminals). Sometimes the top (3rd) wire doesn't make a good connection. If you have two slaves daisy-chained, then you'll only have two wires to put in each terminal.

Master------slave-----slave
|
|
slave

 

[Astra99]

It is not regarded as good practice to put more than two wires in a punch-down (Krone) connecter. Bearing in mind that telephones require a maximum of three connections (2.3&5) then a standard 6-way or 8-way (for 8-way, ignore terminals 4 & jointbox can be modified by soldering from terminals 1-4, 2-5 and 3-6 (on the PCB) thus enabling one in plus three out connections. If each connection "space" has 2 sets of wires in each, then one in plus 7 out is the sum total!

 

[Lectrician]

It is not regarded as good practice to put more than two wires in a punch-down (Krone) connecter. Bearing in mind that telephones require a maximum of three connections (2.3&5) then a standard 6-way or 8-way (for 8-way, ignore terminals 4 & jointbox can be modified by soldering from terminals 1-4, 2-5 and 3-6 (on the PCB) thus enabling one in plus three out connections. If each connection "space" has 2 sets of wires in each, then one in plus 7 out is the sum total!

Or get a proper joint box! Like a BT 77a or 78a. The opposing IDCs are connected.

 

[OwainDIYer]

or if you turn off the cutter function on the Krone tool, and loop the uncut cable through the connector, you can get 1 in 3 out on a single connector.