AC-SYSTEM-MIB :: acSysTDMClockFallbackClock

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsAC-SYSTEM-MIBacSysTDMClockFallbackClock

acSysTDMClockFallbackClock

Module: AC-SYSTEM-MIB

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

OID (numeric): 1.3.6.1.4.1.5003.9.10.10.1.2.1.10

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-write

Description: Selects the fallback clock source on which board synchronizes in the event of clock failure. 4 = PSTN Network 8 = H.110A 9 = H.110B 10 = NetRef1 11 = NetRef2. Access: Online. AC INI-Param: TDMBusFallbackClock

What is acSysTDMClockFallbackClock?

This OID specifies which clock source the board automatically switches to if the primary clock fails. Network engineers configure this to ensure voice/data services don't drop when the main clock goes down by selecting a backup like the PSTN network or an alternative network clock. For example, setting this to 4 means if the primary clock fails, the board will fall back to using the PSTN network clock to keep services running.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.5003.9.10.10.1.2.1.10
snmpwalk -v2c -c public <target> AC-SYSTEM-MIB::acSysTDMClockFallbackClock

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.5003.9.10.10.1.2.1.10.1
snmpget -v2c -c public <target> AC-SYSTEM-MIB::acSysTDMClockFallbackClock.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.5003.9.10.10.1.2.1.10.1 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::acSysTDMClockFallbackClock 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
1.3.6.1.4.1.5003.9.10.10.1.2.1acSysTDMClockAC-SYSTEM-MIB
1.3.6.1.4.1.5003.9.10.10.1.2.1.10acSysTDMClockFallbackClockAC-SYSTEM-MIB