Using Q1 menus

BER alarm limit (6,4, port #,3,7)

The bit error rate (BER) alarm limit of the G.704/2M port can be checked and changed using this menu. The BER alarm limit can be either 10-3(E- 3) or 10-6(E-6). Alarms can only appear if the frame format is either one of the CRC-4 alternatives.

BER alarm severity (6,4, port #,3,8)

This menu allows you to view and change the value set to the BER alarm severity. Alarms can only appear if the frame format is either one of the CRC-4 alternatives.

X.21-type interface settings (6,4, port #,3)

The X.21 adapter is installed in the port.

The menu (see Figure 67) allows you to check the current states of DTE circuits and possible changes occurred during the last 15 minutes.

Circuit C (6,4, port #,3,1)

The options of the submenu are:

-to display the use of circuit C

-not to use circuit C (Not in use)

-to select circuit C to control circuit I at the remote end by using ITU- T V.13 signalling (Simulated carrier).

-Circuit I (6,4, port #,3,2)

There are two optional alternatives:

-to make circuit I follow the state of line synchronisation.

-to set circuit I to follow simulated carrier signalling (V.13).

G.703/64k-type interface settings (6,4, port #,3)

Interface mode (6,4, port #,3,2)

The interface mode can be codirectional or contradirectional (see Figure 68). In the contradirectional mode, you need to select the internal timing source.

DTE interface (if) alarm (6,4, port #,5)

The Q1 DTE alarm handling can be enabled or disabled (see Figure 64). If it is enabled, all DTE alarms of the port in question are transmitted to Q1 management. If the option Q1 alarms disabled is selected, DTE alarms are not forwarded to Q1 management.

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© Nokia Corporation

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Nokia DNT2Mi sp/mp user manual 703/64k-type interface settings 6,4, port #,3

DNT2Mi sp/mp specifications

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