Re: [Repeater-Builder] SM-120 Assy. connection clarification

[kh6jkg]

Thanks, I was counting across, not up and down on the connector.
Thanks, for clarifying the pin configuration, which is not shown on the SM-120
section.

73's,   Jim   Kh6jkg.

-Original Message-
From: Eric Lemmon 
To: Repeater-Builder@yahoogroups.com
Sent: Sun, Jun 13, 2010 9:30 am
Subject: RE: [Repeater-Builder] SM-120 Assy. connection clarification


 

Jim,

According to the SM-series Service Manual 6880903Z45, pin 7 of the accessory
connector and pin 4 of the mike jack are ground. I verified this on a new
radio just now.

Confusion sometimes arises because of the way Motorola numbers the pins.
When looking in at the accessory connector, with the radio upright, the pins
are numbered thus: 

15 13 11 9 7 5 3 1
16 14 12 10 8 6 4 2

When looking in at the mike jack, the wires are numbered thus:

8 7 6 5 4 3 2 1

The SM-series Service Manual is still available from Motorola Parts for
about $22.

73, Eric Lemmon WB6FLY

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of kh6...@netscape.net
Sent: Sunday, June 13, 2010 11:29 AM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] SM-120 Assy. connection clarification

With no power connected, on the Accessory connection in the back of the
unit, which is Ground?

Sm-120 reference information states that pin 7 is ground.

On my unit, on the Accessory connection in the back of the unit, pin 4 is at
ground.

I have programmed the Accessory for pin 4 to be COR + PL., pin 9 PTT, pin 11
Rx audio , and
pin 3 Tx audio.

I noticed that the information on the SM-120 web page stated, in the front,
the RJ-45 pin 4 is at ground.

Could someone explain, or correct the Accessory connection.

Thanks, 73's, Jim Kh6jkg

RE: [Repeater-Builder] SM-120 Assy. connection clarification

[Eric Lemmon]

Jim,

According to the SM-series Service Manual 6880903Z45, pin 7 of the accessory
connector and pin 4 of the mike jack are ground.  I verified this on a new
radio just now.

Confusion sometimes arises because of the way Motorola numbers the pins.
When looking in at the accessory connector, with the radio upright, the pins
are numbered thus: 

15  13  11   97531
16  14  12  10   8642

When looking in at the mike jack, the wires are numbered thus:

8   7   6   5   4   3   2   1

The SM-series Service Manual is still available from Motorola Parts for
about $22.

73, Eric Lemmon WB6FLY


-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of kh6...@netscape.net
Sent: Sunday, June 13, 2010 11:29 AM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] SM-120 Assy. connection clarification

  

With no power connected, on the Accessory connection in the back of the
unit, which is Ground?

Sm-120 reference information states that pin 7 is ground.
 
On my unit, on the Accessory connection in the back of the unit, pin 4 is at
ground.
 
I have programmed the Accessory for pin 4 to be COR + PL., pin 9 PTT, pin 11
Rx audio , and
pin 3 Tx audio.
 
I noticed that the information on the SM-120 web page stated, in the front,
the RJ-45 pin 4 is at ground.
 
Could someone explain, or correct the Accessory connection.
 
Thanks,73's,   JimKh6jkg

Re: [Repeater-Builder] SM-120 Assy. connection clarification

[Mike Morris]

At 11:29 AM 06/13/10, you wrote:

With no power connected, on the Accessory connection in the back of 
the unit, which is Ground?


Sm-120 reference information states that pin 7 is ground.

On my unit, on the Accessory connection in the back of the unit, pin 
4 is at ground.


I have programmed the Accessory for pin 4 to be COR + PL., pin 9 
PTT, pin 11 Rx audio , and

pin 3 Tx audio.

I noticed that the information on the SM-120 web page stated, in the 
front, the RJ-45 pin 4 is at ground.


Could someone explain, or correct the Accessory connection.

Thanks,73's,   JimKh6jkg.




about 2/3 of the way down.;

Mike 

[Repeater-Builder] SM-120 Assy. connection clarification

[kh6jkg]

With no power connected, on the Accessory connection in the back of the unit, 
which is Ground?

Sm-120 reference information states that pin 7 is ground.

On my unit, on the Accessory connection in the back of the unit, pin 4 is at 
ground.

I have programmed the Accessory for pin 4 to be COR + PL., pin 9 PTT, pin 11 Rx 
audio , and
pin 3 Tx audio.

I noticed that the information on the SM-120 web page stated, in the front, the 
RJ-45 pin 4 is at ground.

Could someone explain, or correct the Accessory connection.

Thanks,73's,   JimKh6jkg.