Black Box ME759C-RJ11, ME758C-RJ45, May-95 Line-Cable Pinouts, AT&T standard modular color codes

CHAPTER 4: Installation

Table 4-3. Line-Cable Pinouts

			RJ-11 (Four-Wire)
SIGNAL	PIN#	COLOR*	COLOR*
GND**	1	Blue	White
RCV–†	2	Yellow	Red
XMT+	3	Green	Black
XMT–	4	Red	Yellow
RCV+	5	Black	Green
GND**	6	White	Blue
			RJ-45 (Four-Wire)
SIGNAL	PIN#	COLOR*	COLOR*
GND**	2	Orange	Brown
RCV–†	3	Black	Green
XMT+	4	Red	Yellow
XMT–	5	Green	Black
RCV+	6	Yellow	Red
GND**	7	Brown	Orange
			RJ-11 (Two-Wire)
SIGNAL	PIN#	COLOR*	COLOR*
XMT+†	3	Green	Green
XMT–	4	Red	Red
			RJ-45 (Two-Wire)
SIGNAL	PIN#	COLOR*	COLOR*
XMT+†	4	Red	Red
XMT–	5	Green	Green

*Standard color codes—wire colors in your cable might be different **Connection to ground is optional

†The Multi-Function LD Card is not sensitive to polarity

1 – Blue

2 – Yellow

3 – Green

4 – Red

5 – Black

6 – White

PIN# SIGNAL

6 GND**

4XMT–

5RCV+

2RCV–

3XMT+

1GND**

PIN# SIGNAL

7 GND**

5XMT–

6RCV+

3RCV–

4XMT+

2GND**

PIN# SIGNAL

3XMT+

4XMT–

PIN# SIGNAL

4XMT+

5XMT–

1 – Blue

2 – Orange

3 – Black

4 – Red

5 – Green

6 – Yellow

7 – Brown

8 – Slate

Figure 4-2. AT&T® standard modular color codes.

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