Verilink PRISM 4051 (34-00253.2) Product Manual Manual de usuario descargar pdf (Pagina 14)

8 C

HAPTER

2: I

NSTALLATION

DTE Alarm

Switch S1-8 is used to enable or disable

the DTE alarm as shown in Table 2-7.

The DTE alarm is generated when DTR

from the DTE is false.

Configuration

Switch S2

Switch S2 (Figure 2-3) configures the antistream timer, V.54 loop, circuit

assurance, loop mode, supervisory port rate, and NMS port rate.

Antistream Timer

Switch S2-1 is

used to set the

Antistream Timer

as shown in

Table 2-8.

V.54 Loop Detection

Switch S2-2 is

used to enable

V.54 loop

detection as shown

in Table 2-9.

Circuit Assurance

Switch S2-3 selects whether the CTS control lead

responds to the data signal from the network as

shown in Table 2-10. When Circuit Assurance is On

and the unit is receiving idle code (i.e., DCD is Off),

the 4051 turns the CTS lead off. When Circuit

Assurance is turned off, the state of the CTS control lead is not affected by the

data signal from the network.

Loop Mode

Switch S2-4 is

used to select the

loopback method

as shown in

Table 2-11.

Table 2-7 DTE Alarm

DTE Alarm S1-8

Disable

Down

Enable Up

Figure 2-3 Switch S2

7654321

Down Up

Antistream

V.54 Loop

Circuit

NMS

Timer

Enable

Port Rate

Supervisory

Port Rate

Assurance

Loop

Mode

Supervisory

Port Rate

Switch

Table 2-8 Antistream Timer

Antistream Timer S2-1

Off

Down

30 Seconds Up

Table 2-9 V.54 Loop Detection

V.54 Loop S2-2

Enable

Down

Disable Up

Table 2-10 Circuit Assurance

Circuit Assurance S2-3

Enable Up

Disable

Down

Table 2-11 Loop Mode

Loop Mode S2-4

Bidirectional

Down

Unidirectional Up

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 47 48

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