ACMIB :: e1TransmitClockSource

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsACMIBe1TransmitClockSource

e1TransmitClockSource

Module: ACMIB

OID (symbolic): ACMIB::e1TransmitClockSource

OID (numeric): 1.3.6.1.4.1.1751.2.18.2.12.1.6

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-write

Description: e1 timing source

What is e1TransmitClockSource?

This OID selects the timing source for E1 transmission: recovered receive clock (loopTiming), a local oscillator (localTiming), or an adaptive method. Network engineers must set this correctly to stay synchronized with the carrier network; incorrect timing will cause bit slips and call failures. For example, in a public ISDN connection, you typically set this to 'loopTiming' so your device locks to the carrier's incoming signal and maintains perfect synchronization.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.1751.2.18.2.12.1.6
snmpwalk -v2c -c public <target> ACMIB::e1TransmitClockSource

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.1751.2.18.2.12.1.6.1
snmpget -v2c -c public <target> ACMIB::e1TransmitClockSource.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.1751.2.18.2.12.1.6.1 i <value>

Start monitoring Lucent/Nortel Access Concentrator (legacy) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the ACMIB::e1TransmitClockSource OID value, configure state conditions and alerts, and monitor any Lucent/Nortel Access Concentrator (legacy) from a single console.

OID Breakdown

Upper-level ancestors (6 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
Numeric OIDNameModule
1.3.6.1.4.1.1751lucentACMIB
1.3.6.1.4.1.1751.2mibsACMIB
1.3.6.1.4.1.1751.2.18acMIBACMIB
1.3.6.1.4.1.1751.2.18.2equipConfigACMIB
1.3.6.1.4.1.1751.2.18.2.12e1PortConfigTableACMIB
1.3.6.1.4.1.1751.2.18.2.12.1e1PortConfigEntryACMIB
1.3.6.1.4.1.1751.2.18.2.12.1.6e1TransmitClockSourceACMIB