Avaya Configuring WAN Line Services Manual de usuario Pagina 266

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Configuring WAN Line Services
A-58
117345-B Rev. 00
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, the 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 Internal or External, as appropriate for your network.
For direct connection to a control unit, such as an IBM 3174, set this parameter
to Internal. For connection to a modem, set this parameter 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 this parameter to
Internal.
MIB Object ID: 1.3.6.1.4.1.18.3.4.5.1.13
Parameter: Internal Clock Speed
Path: COM Connector > Edit Line > Edit SYNC Parameters
Default: 64 KB (19200 KB for SDLC)
Options: 1200 B
|
2400 B
|
4800 B
|
7200 B
|
9600 B
|
19200 B
|
32000 B
|
38400 B
|
56 KB
|
64 KB
|
125 KB
|
230 KB
|
420 KB
|
625 KB
|
833 KB
|
1.25 MB
|
2.5 MB
|
5 MB
Function: Sets the clock speed of an internally supplied clock when the Clock Source
parameter is set to Internal. Attached devices must be able to operate at the
specified speed.
Instructions: Set the clock speed for the internal clock to the desired data transmission rate
across the synchronous line.
Some of the more common speeds for IBM products are as follows:
An IBM 3274 with a V.24/RS-232 interface supports up to 9600 b/s. Some
support speeds of up to 19200 b/s.
An IBM 3274 with a V.35 interface supports up to 64 Kb/s.
An IBM 3174 with a V.24/RS-232 interface supports up to 19200 b/s.
An IBM 3174 with a V.35 interface and running Licensed Internal Code-C
supports up to 256 Kb/s.
MIB Object ID: 1.3.6.1.4.1.18.3.4.5.1.14
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