AC-SYSTEM-MIB :: acSysTimingMode

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsAC-SYSTEM-MIBacSysTimingMode

acSysTimingMode

Module: AC-SYSTEM-MIB

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

OID (numeric): 1.3.6.1.4.1.5003.9.10.10.1.14.1

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-write

Description: Determines the PSTN Timing synchonization mode of the Gateway. One of the following values: TM_External_MODE(1) -External Timing mode - use the SAT trunks Centralized Line Timing to synchronize the Gateway with one of the PSTN interfaces. TM_LineSync_MODE(2) -Distributed Line Timing mode (for the 1610 boards)- without using the SAT timing module. TM_Standalone_MODE(0) -Non-synchronized mode - each board or TPM is synchronized internally from one of the PSTN interfaces without using the SAT timing module. Access: Online. AC INI-Param: TMMode

What is acSysTimingMode?

AC-SYSTEM-MIB::acSysTimingMode selects how the gateway synchronizes its internal clock, choosing between TM_Standalone_MODE (0, no synchronization), TM_External_MODE (1, using SAT trunk timing), or TM_LineSync_MODE (2, using distributed line timing). Network engineers configure this to ensure all timing references within the system are locked to the same source, preventing clock drift on telephone calls. For example, setting this to 1 means the device will lock its clock to timing pulses extracted from incoming PSTN trunk signals.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.5003.9.10.10.1.14.1
snmpwalk -v2c -c public <target> AC-SYSTEM-MIB::acSysTimingMode

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.5003.9.10.10.1.14.1.1
snmpget -v2c -c public <target> AC-SYSTEM-MIB::acSysTimingMode.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.5003.9.10.10.1.14.1.1 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::acSysTimingMode 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
1.3.6.1.4.1.5003.9.10.10.1.14acSysTimingAC-SYSTEM-MIB
1.3.6.1.4.1.5003.9.10.10.1.14.1acSysTimingModeAC-SYSTEM-MIB