Vmux-2100Installation and Operation Manual

Chapter 4 Management from a Terminal

 

 

Main Link 1 or Main Link 2

1.Connect > (Yes)

2.Frame > (G.732S)

3.Restoration Time> (CCITT)

4. Clock Source> (Lbt

(Local))

5.Interface Type> (Ltu)

6.Idle Code [0 - ff]... (ff)

@ - Db Update; # - Db Undo ESC-prev.menu; !-main menu; &-exit

Figure 4-25. Main Link 1/2 Menu for E1 Port Module

3.From the Main Link 1/2 menu, configure the following E1 parameters: Connect:

Yes (E1 link is enabled) No (E1 link is disabled).

Frame (E1 framing mode):

G.732N (256N multiframe, 2 frames per multiframe, CRC-4 function disabled)

G.732N-CRC4(256N multiframe, 2 frames per multiframe, CRC-4 function enabled)

G.732S (256S multiframe, 16 frames per multiframe, CRC-4 function disabled)

G.732S-CRC4(256S multiframe, 16 frames per multiframe, CRC-4 function enabled).

Restoration Time (time required for the E1 port to return to normal operation after sync loss):

1 Second (after 1 second, fast)

10Second (as per requirements of AT&T TR-62411) CCITT (as per requirements of ITU-T Rec.G.732).

Clock Source:

Lbt (derived from the received E1 signal)

Internal (received from the Vmux-2100 internal oscillator).

Interface Type (maximum attenuation of the Rx signal that can be compensated for by the port Rx path, to obtain BER performance required by the standards):

Ltu (maximum attenuation of 43 dB, relative to the nominal transmit level of 0 dB, operates at longer ranges)

Dsu (maximum attenuation of 12 dB, relative to the nominal transmit level of 0 dB).

Configuring Main Link and Voice E1/T1 Ports

4-21

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RAD Data comm Vmux-2100 Voice Trunking Gateway operation manual Main Link 1/2 Menu for E1 Port Module