What to do if the CPU failed on my Harris Multiplexer?
- MMark CarrollAug 6, 2025
If the Harris Multiplexer CPU has failed, replace the module with a spare.
What to do if the CPU failed on my Harris Multiplexer?
If the Harris Multiplexer CPU has failed, replace the module with a spare.
What to do if there is a loss of receive signal on my Harris Intraplex ACS-160 Multiplexer?
If the Harris Multiplexer is experiencing a loss of receive signal, contact your T1 carrier to verify that the T1 circuit is operating.
What to do if the signal is present but out-of-frame on my Harris Intraplex ACS-160 Multiplexer?
If the Harris Multiplexer is showing a signal present but out-of-frame, contact your T1 carrier to find out what kind of frame format is in use on the T1 circuit and ensure that this format is set correctly on the multiplexers at both ends of the T1 circuit.
What to do if my Harris Intraplex ACS-160 is receiving a yellow alarm?
If the Harris Multiplexer is showing a yellow alarm, contact your T1 carrier to resolve the problem.
What to do if my Harris Multiplexer is receiving alarm indication signal?
If the Harris Multiplexer is showing an alarm indication signal, contact your T1 carrier to resolve the problem.
How to fix no transmit output on Harris Intraplex ACS-160 Multiplexer?
If the Harris Multiplexer has no transmit output, replace it with a spare.
Brand | Harris |
---|---|
Model | Intraplex ACS-160 Series |
Category | Multiplexer |
Language | English |
Primary reference for configuration, installation, operation, and troubleshooting of T1 multiplexers.
Guidelines for readers, installers, engineers, and maintenance technicians on how to use the manual.
Details the various ACS-160 and STL-160 Series T1 multiplexer models available.
Identifies the main components of the multiplexer shelf, including common modules, channel modules, etc.
Describes the local user interface of the CM-5RB module, including jacks, switches, and indicators.
Explains the functions of the main equipment shelf, midplane, and how components communicate.
Explains the function of the signal bus in terminal and drop/insert multiplexer operations.
Details the operational functions of the CM-5RB common module, including multiplexing and user interface.
Explains the two levels of redundancy available: module and module/line redundancy.
Details the specifications and indicator lights for the Y-Series power supply modules.
Lists the types of channel modules available, including voice, data, and program audio modules.
Explains the function and insertion of module adapters for common and channel modules.
Explains the structure of a T1 circuit, including time slots and overhead.
Describes single (ACS-163/167) and dual (ACS-166/169) terminal multiplexer configurations.
Explains the basic point-to-point system configuration using two terminal multiplexers.
Describes the ACS-165 and ACS-168 drop and insert multiplexer configurations.
Explains how adding drop/insert multiplexers converts a system into a drop/insert system.
Lists the necessary tools, cables, and hardware for completing the installation.
Outlines the procedure for inspecting shipping cartons and equipment for damage upon receipt.
Provides instructions for mounting the multiplexer shelves into the equipment rack and ensuring proper seating.
Details the installation procedure for redundant CM-5RB modules and adapters for module redundancy.
Discusses module adapters for CM-5RB common modules and adapter pairs for line redundancy.
Provides guidelines for wiring multiplexers before placing T1 or payload circuits into service.
Provides guidelines for installing additional channel modules without affecting other channels.
Explains the use of the integrated CSU and its configuration to match T1 carrier requirements.
Details the CM-5RB basic configuration menu structure for setting up module parameters.
Covers the Advanced Configuration Group for specialized functions that rarely need adjustment.
Explains how to select the T1 transmitter timing source (Internal, Loop, External, Through).
Explains how to set T1 frame formats (SF, ESF) and line codes (AMI, B8ZS) using the TSEL group.
Covers configuring redundancy settings for CM-5RB modules using the REDN group.
Explains the setup and operation of the optional CM-5RTD module for time delay functionality.
Details configuring module (MRDN) and line (LRDN) redundancy through front panel groups.
Describes physical connection methods for remote control, including serial cable, DS0, and IP network.
Details the RS-232 remote port connections to PCs, other modules, or SCM-IP modules.
Explains how to use DS0 management communications for remote access and control over T1 lines.
Explains setting up an IP connection using the SCM-IP module for SNMP and IntraGuide software.
Describes the different Intraplex remote control interfaces: IntraGuide, SNMP, and ISiCL.
Details the IntraGuide software for reviewing status, monitoring, and configuring multiplexers.
Explains SNMP support via the SCM-IP module for network management of Intraplex products.
Details the ISiCL command language for configuring and operating multiplexers via serial connections.
Explains how to use LOCK and UNLOCK commands and change passwords for remote port security.
Explains the ISiCL WHO command for retrieving module identity, configuration, and status.
Explains how to use STATUS? commands to get channel module status information.
Explains how to access and evaluate CSU line performance statistics using ISiCL commands.
Details how to query AT&T TR54016 performance registers using ATT_STAT? commands.
Explains how to query AT&T TR54016 performance registers using REGISTERS? commands.
Lists essential tools and equipment for performing tests and troubleshooting procedures.
Describes the CM-5RB module's jacks, switches, and indicator lights for monitoring and control.
Details internal functions that assist in testing and troubleshooting the ACS-160 system.
Explains how to activate and deactivate T1 loopbacks (Equipment, Line, Payload) on the CM-5RB module.
Explains the meaning of blinking indicator lights and messages in the BLNK group for troubleshooting.
Details status information on phase-locked loops, timing lock, and jitter buffer in the RVU1 group.
Describes the DIAG group for basic T1 module information and factory reset.
Explains alert and alarm conditions and their causes.
Provides general procedures for testing a newly installed ACS-160 system before it goes online.
Details the procedure for checking out a terminal multiplexer or CM-5RB module in TERM mode.
Provides steps for testing drop/insert multiplexers at Location 2 in a three-site system.
Describes using test equipment for T1 circuit level and individual channel tests.
Details the T1 input and output test jacks on the CM-5RB module for test access.
Describes performing in-service monitoring and testing of T1 facilities.
Describes using T1 test equipment for out-of-service testing of T1 facilities.
Provides principles for testing individual payload channels using analog or data test equipment.
Presents a general approach to troubleshooting ACS-160 systems, including guidelines and procedures.
Details the steps for testing the power supply voltages and indicator lights.
Explains troubleshooting steps for alert and alarm conditions indicated by multiplexer lights.
Provides detailed technical specifications for T1 outputs, T1 inputs, timing, user interface, and diagnostics.
States FCC compliance information, including limits for Class A digital devices and potential interference.
Explains the P codes used in ISiCL SET commands to set CM-5RTD delay parameters.
Defines the S codes that appear in STATUS? queries for CM-5RTD delay feature status.
Describes the indicator lights and operation of the CM-5RTD module for delay functionality.
Details how to set CM-5RTD delay values using ISiCL SET commands via an RS-232 remote port.
Explains how to set CM-5RTD delay values using the RS-422 control port.