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

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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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Contents Multi-Function LD Cards FCC Statements MULTI-FUNCTION LD Card NOM Statements Contents Specifications Diagnostics IndicatorsConnectors Power TemperatureWeight FuseIntroduction FeaturesOverview Introduction Setting the Switches on the Main Module Main-module switchesOn and OFF settings of the DIP switches Switch S1 SummaryS1 Positions 5 and 6 Clock Source S1 Positions 1 through 4 Data-Rate SettingS1 Position 7 Protocol S2 Position 2 2-Wire vs -Wire Operation Switch S2 SummaryS1 Position 8 Carrier-Control Method S2 Position 3 V.52 and V.54 Diagnostic Testing S2 Positions 4 and 5 RTS/CTS DelayS2-6 Signaling-Rate Range S2-7 and S2-8 Word LengthSwitch S3 Summary S3-1 and S3-2 Input ImpedanceRecommended Impedance Settings S3-4 Mode SelectionS3-5 DTE RS-232 Initiation of Local Loopback Test S3-6 DTE RS-232 Initiation of Remote Loopback TestSetting the Jumpers on the Interface Module S3-7 and S3-8 Antistream ControlFour interface modules Jumper locations Summary of Interface-Module Jumper Functions Line Interface Line Shield Connection to Frame Ground JB2Serial Interface Signal Ground and Frame Ground JB4 JB5Installation MicroRacks An OverviewMicroRacks’ Power Supply Installing the Multi-Function LD Card in the MicroRack Pinout of the RS-232 Interface RS-232 Serial Cables and ConnectorsPinout of the 10-Pin RJ Interface Modem-to-Modem Line Cables and Connectors Line-Cable Pinouts AT&T standard modular color codesTwo-pair star wiring for host and slave Cards Multipoint ApplicationsOperation and Diagnostics Status LEDsRTS and CD Indicators Diagnostic Testing Using the Error LED Power-Up V.54 and V.52 Diagnostic Tests Remote Digital Loopback RDL Using the V.52 Bert Test Independently Calling Your Supplier TroubleshootingShipping and Packaging Wire Gauge Capacitance Resistance Appendix Cable RecommendationsMULTI-FUNCTION LD Card Copyright 1995. Black Box Corporation. All rights reserved