AC-SYSTEM-MIB :: acSysPCMIdlePattern

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsAC-SYSTEM-MIBacSysPCMIdlePattern

acSysPCMIdlePattern

Module: AC-SYSTEM-MIB

OID (symbolic): AC-SYSTEM-MIB::acSysPCMIdlePattern

OID (numeric): 1.3.6.1.4.1.5003.9.10.10.1.2.3.2

Node type: OBJECT-TYPE

Type: Unsigned32

Access: read-write

Description: Defines the PCM pattern applied to the E1/T1 timeslot (B-channel) when the channel is idle. Default: 0xFF if PCMLawSelect is Mu-Law 0xD5 if PCMLawSelect is A-Law Range = 0x00 to 0xFF. Access: Offline. AC INI-Param: IDLEPCMPATTERN

What is acSysPCMIdlePattern?

This OID sets the byte value (0x00 to 0xFF) that the board transmits in a TDM timeslot when no active voice or data is being sent. Network engineers configure this to ensure proper channel idle state and sometimes to aid troubleshooting by using a distinctive pattern. For example, setting this to 0xFF (all bits set to 1) is standard for Mu-law systems and helps distant equipment recognize the idle pattern correctly.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.5003.9.10.10.1.2.3.2
snmpwalk -v2c -c public <target> AC-SYSTEM-MIB::acSysPCMIdlePattern

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.5003.9.10.10.1.2.3.2.1
snmpget -v2c -c public <target> AC-SYSTEM-MIB::acSysPCMIdlePattern.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.5003.9.10.10.1.2.3.2.1 i <value>

Start monitoring AudioCodes Mediant-series gateways/media servers with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the AC-SYSTEM-MIB::acSysPCMIdlePattern OID value, configure state conditions and alerts, and monitor any AudioCodes Mediant-series gateways/media servers from a single console.

OID Breakdown

Upper-level ancestors (9 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
1.3.6.1.4.1.5003audioCodesAC-ATM-MIB
1.3.6.1.4.1.5003.9acProductsAC-ATM-MIB
1.3.6.1.4.1.5003.9.10acBoardMibsAC-ATM-MIB
Numeric OIDNameModule
1.3.6.1.4.1.5003.9.10.10acSystemAC-SYSTEM-MIB
1.3.6.1.4.1.5003.9.10.10.1acSystemConfigurationAC-SYSTEM-MIB
1.3.6.1.4.1.5003.9.10.10.1.2acSysTDMAC-SYSTEM-MIB
1.3.6.1.4.1.5003.9.10.10.1.2.3acSysPCMAC-SYSTEM-MIB
1.3.6.1.4.1.5003.9.10.10.1.2.3.2acSysPCMIdlePatternAC-SYSTEM-MIB