MMJ Stranded

[Bob La Londe]

I need a couple MMJ (and probably a couple spares in case I screw one up)
connectors for stranded wire. I can use flat or round wire insert for this
application.

None of my old sources seem to have them, and my last couple orders from
Digi-Key got "lost".

I'll gladly pay for them and a flat rate envelope if you can get them in the
mail today. I do PayPal.

email me at:
alarm (underscore) wizard (at) hotmail (dot) com

I thought I had some but they didn't work. When I put my reading glasses on
to actually look at them I realized they were for solid wire. Oops.

 

[Bob La Londe]

I need a couple MMJ (and probably a couple spares in case I screw one up)
connectors for stranded wire. I can use flat or round wire insert for
this application.

None of my old sources seem to have them, and my last couple orders from
Digi-Key got "lost".

I'll gladly pay for them and a flat rate envelope if you can get them in
the mail today. I do PayPal.

email me at:
alarm (underscore) wizard (at) hotmail (dot) com

I thought I had some but they didn't work. When I put my reading glasses
on to actually look at them I realized they were for solid wire. Oops.

For those who don't know. MMJ is an offset locking tab modular connector
that looks similar to an RJ-12 phone cord plug. It has 6 pins. Stranded
type
pins puncture the connectors through the center, and solid type pins skin
the
insulation off the sides. If you have good eyes or good reading glasses and
plastic isn't to fogged and scratched from riding around in a box in your
truck you can see the difference through the plastic.

 

[Bob La Londe]

For those who don't know. MMJ is an offset locking tab modular connector
that looks similar to an RJ-12 phone cord plug. It has 6 pins. Stranded
type
pins puncture the connectors through the center, and solid type pins skin
the
insulation off the sides. If you have good eyes or good reading glasses
and
plastic isn't to fogged and scratched from riding around in a box in your
truck you can see the difference through the plastic.

Its looking like I am going to have to make an adaptor of some kind.
Digi-Key and MCM don't even have them.

 

[Bob La Londe]

may try here
http://www.cablesforless.com/RJ12-Modular-Connector-With-Offset-MMJ-Clip-6P6C-P4866.aspx

Thank you. Now to find out if the one they have is for stranded or solid
wire... or if they know the difference.

Just sent them a message.

For those who don't know. MMJ is an offset locking tab modular connector
that looks similar to an RJ-12 phone cord plug. It has 6 pins. Stranded
type pins puncture the connectors through the center, and solid type pins
skin the insulation off the sides. If you have good eyes or good reading
glasses and plastic isn't to fogged and scratched from riding around in a
box in your truck you can see the difference through the plastic.

The Problem:

1. If you use a penetrating stranded wire type on solid wire you risk it
breaking the conductor and having a bad connection.

2. If you use a skinning type solid wire type on stranded wire you risk the
conductor just forming an oval and slipping between the skinning points and
having a bad connection or even no connection.

 

[G. Morgan]

Just sent them a message.

For those who don't know. MMJ is an offset locking tab modular connector
that looks similar to an RJ-12 phone cord plug. It has 6 pins. Stranded
type pins puncture the connectors through the center, and solid type pins
skin the insulation off the sides. If you have good eyes or good reading
glasses and plastic isn't to fogged and scratched from riding around in a
box in your truck you can see the difference through the plastic.

What are they used for?

--

"I don't like to discriminate against terrorists based on nationality.
If you declare war on the United States and you want to kill us,
We're going to kill you first, period."

October 19, 2011 - Ali Soufan (Colbert Report)

 

[Bob La Londe]

What are they used for?

They are used where you want a quick modular connection, but don't want
people to be able to plug a phone into it. In this case they are on the end
of the cable for a wired remote for a multiplexer.

 

[G. Morgan]

They are used where you want a quick modular connection, but don't want
people to be able to plug a phone into it. In this case they are on the end
of the cable for a wired remote for a multiplexer.

Ah, clever. Never heard of that method.

--

"I don't like to discriminate against terrorists based on nationality.
If you declare war on the United States and you want to kill us,
We're going to kill you first, period."

October 19, 2011 - Ali Soufan (Colbert Report)

 

[G. Morgan]

Google MMJ, and one of the hits will bring you to Wikipedia for a
reasonable explanation.

Thanks. I've always used the rs485 box/cord that comes with the PTZ
controller, it never dawned on me someone could try to plug a phone in
it!

http://en.wikipedia.org/wiki/Modified_Modular_Jack

The DECconnect Modified Modular Jack (MMJ) is a variation of the 6P6C
modular connector and was developed by Digital Equipment Corporation.
The main difference from the conventional modular connector is that the
hook is toward the side instead of the center of the plug, making it
impossible to insert a standard modular cable plug such as those used
telephone or Ethernet applications. MMJ connectors are used on Digital
minicomputers, such as the PDP-11, VAX and Alpha based machines and to
connect terminals, printers or serial console servers.

The six conductors of the DECconnect MMJ connector are used for the main
signals in RS-423 serial communication: Tx and Rx for the data
transmission and DSR and DTR for handshaking. The transmit and receive
signals are differential, i.e. each signal is the voltage difference
between two conductors, as opposed to a voltage on a single connector
relative to a common reference. But one can in practice wire these
signals to an RS-232 device, which uses the common reference method, by
combining the lower voltage sides of each signal to the RS-232 signal
ground line. For this type of connection there are a number of models of
conversion adapter.

When connecting two DTE devices such as a computer and a printer, the
Digital BC16E crossover cable is used.
--

"I don't like to discriminate against terrorists based on nationality.
If you declare war on the United States and you want to kill us,
We're going to kill you first, period."

October 19, 2011 - Ali Soufan (Colbert Report)

 

[Bob La Londe]

I need a couple MMJ (and probably a couple spares in case I screw one up)
connectors for stranded wire. I can use flat or round wire insert for
this application.

None of my old sources seem to have them, and my last couple orders from
Digi-Key got "lost".

I'll gladly pay for them and a flat rate envelope if you can get them in
the mail today. I do PayPal.

email me at:
alarm (underscore) wizard (at) hotmail (dot) com

I thought I had some but they didn't work. When I put my reading glasses
on to actually look at them I realized they were for solid wire. Oops.

I was about ready to just make some jack and cord adaptors to use the solid
wire MMJs I have when a little gold magic bag appeared in my mail box. I
closed my eyes and wished for stranded wire MMJ connectors. I opened the
draw string on the magical little gold bag. Several little stranded wire
MMJs tumbled out on my desk.... Along with a steel 1943 penny, a USB card
reader, and a power connector for an iPod. Weird.

Anybody need an iPod cord, or a USB SD card reader? The money I am keeping.
Sorry.

 

[Bob La Londe]

Sounds to me like a job by the MMJ fairy!

HEY! HE CALLED YOU A FAIRY!