---
oid: "1.3.6.1.4.1.562.2.4.1.12.5.10.1.3"
asn1-notation: "{iso(1) identified-organization(3) dod(6) internet(1) private(4) enterprise(1) 562 magellan(2) passport(4) components(1) lp(12) lpDS3(5) lpDS3ProvTable(10) lpDS3ProvEntry(1) lpDS3ClockingSource(3)}"
description: "lpDS3ClockingSource OBJECT-TYPE"
classification: "MIB object for network management"
last-modified: "2017-12-20"
---

## OID : `1.3.6.1.4.1.562.2.4.1.12.5.10.1.3`

```asn1
{iso(1) identified-organization(3) dod(6) internet(1) private(4) enterprise(1) 562 magellan(2) passport(4) components(1) lp(12) lpDS3(5) lpDS3ProvTable(10) lpDS3ProvEntry(1) lpDS3ClockingSource(3)}
```

### Description

```asn1
lpDS3ClockingSource OBJECT-TYPE
SYNTAX INTEGER {
local(0),
line(1),
module(2),
otherPort(4) }
ACCESS read-write
STATUS mandatory
DESCRIPTION
"This attribute defines the type of clocking source used for
synchronizing the DS3 transmit clock: local means direct use of the
local clock oscillator at its centre frequency; line means use of a
signal phase-locked to the incoming DS3 line rate; module means
the use of a signal phase-locked to the CP reference clock.
Note that the multiport cell-based cards have one common clock
source for all ports. For this reason, the following rules apply for the
value of clockingSource across the board's three ports:
All three clockingSource values must be 'local' OR
All three clockingSource values must be 'module' OR
One clockingSource value must be 'line' and the other two must be
'otherPort'.
The there is no NS component provisioned, the default value for this
attribute will be local. If the NS component has been provisioned,
the default value is module, except for the 1pDS3C cards.
For the 1pDS3C cards, the default and only valid value for this
attribute is local. The clockingSource of the DS1 sub-component
becomes the effective clocking source for this attribute. All the DS1
sub-components have the same clocking source."
```

**Classification**: MIB object for network management

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