
Configuring Line Services
A-58 115391-A Rev. A
Parameter: Clock Source
Path: COM Connector > Edit Line > Edit Sync Parameters
Default: External
Options: External
| Internal
Function: Specifies the origin of the synchronous timing signals (clock). If you set this
parameter to Internal, this router supplies the required timing signals. If you set
this parameter to External, an external network device supplies the required
timing signals. In most cases, this parameter should be set to External.
Instructions: Set this parameter to either Internal or External, as appropriate for your
network.
For direct connection to a control unit, such as an IBM 3174, set to Internal. For
connection to a modem, set to External. For direct connection to an IBM 3745,
either the router or the IBM 3745 can provide the clock source. If the IBM 3745
does not provide clocking, set to Internal.
MIB Object ID: 1.3.6.1.4.1.18.3.4.5.1.13
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