Metrodata MetroLAN-1000, Подробное краткое руководство по эксплуатации

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QUICK START CONFIGURATION
20 76-02-059A
4 . 8. 1 State
In order to configure the E1/T1 port it must first be placed in the DOWN state. Once
configuration is completed the state must be changed to UP before normal operation will
commence.
4 . 8. 2 Interface
The port operating mode must be selected to be either E1 or T1. This selection is on a per
port basis. In each case the E1/T1 circuit is asynchronously mapped into a VC-12 tributary.
4 . 8. 3 Allocation
The E1/T1 port must be allocated to a single VC-12 tributary within the STM-1 frame. The
allocation is entered in "klm" format.
4.9 Optional E1/T1 Configuration Parameters
The following parameters are not generally necessary to get the basic system up and
running, however their configuration may improve manageability or increase reliability.
4 . 9. 1 Rx Sensitivity/Line Build Out
In most case the E1/T1 end station will be located close to the MetroLAN and thus the default
settings will be fine. However, if there is a long cable run to the end station then the Rx
Sensitivity and Line Build Out options may need to be changed to reflect the actual deployed
equipment.
4 . 9. 2 Path Trace Identifier
In order to identify the VC-12 that is carrying the E1/T1 a label may be attached. This is in
the form of a 15 byte user string and an automatically appended CRC7 byte.
The user may configure the following on a per tributary basis:
J2 Transmit String of up to 15 alphanumeric characters
J2 Receive String of up to 15 alphanumeric characters
If an expected J2 receive value is configured, the MetroLAN will declare a TIM alarm when
there is a mismatch between the configured expected and actual receive J2 identifiers.