Table of Contents
Advertisement
8
C
2: I
HAPTER
NSTALLATION
Configuration
Switch S2
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.
Switch S2 (Figure 2-3) configures the antistream timer, V.54 loop, circuit
assurance, loop mode, supervisory port rate, and NMS port rate.
1
2
3
4
Figure 2-3
Switch S2
Antistream Timer
Switch S2-1 is
Table 2-8
used to set the
Antistream Timer S2-1
Antistream Timer
Off
as shown in
30 Seconds
Table 2-8.
V.54 Loop Detection
Switch S2-2 is
Table 2-9
used to enable
V.54 Loop S2-2
V.54 loop
Enable
detection as shown
Disable
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
Table 2-11
used to select the
Loop Mode
loopback method
Bidirectional
as shown in
Unidirectional
Table 2-11.
Table 2-7
DTE Alarm
Disable
Enable
Switch
S2
5
6
7
8
Antistream Timer
Down
Up
V.54 Loop Detection
Down
Up
Loop Mode
S2-4
Down
Up
DTE Alarm
S1-8
Down
Up
Table 2-10
Circuit Assurance
Circuit Assurance S2-3
Enable
Up
Disable
Down
Advertisement
Table of Contents
