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Configuration
Switch S3
Address Switch S4
SUPV Port Rate
Positions S2-5
Table 2-12
and 2-6 set the
NMS Port Rate
bit rate for the
19.2 kbps
network
1.2 kbps
management
2.4 kbps
system as shown
9.6 kbps
in Table 2-12.
NMS Port Rate
Positions S2-7
Table 2-13
and 2-8 set the
NMS Port Rate
bit rate for the
19.2 kbps
network
1.2 kbps
management
2.4 kbps
system as shown
9.6 kbps
in Table 2-13.
Switch S3
(Figure 2-4) is
reserved for
future expansion,
with the
exception of
S3-8, which is
used to force
download mode.
Figure 2-4
Force Download Mode
Switch S3-8 is used to Force
Download Mode as shown in
Table 2-14. For download bit-rate
information refer to step 7 of
PC Setup on page 39.
Switch S4 sets the unit
address. When using the
4051 with an 8100A Site
Controller, each element in a
group must have a unique
unit address. As many as 50
units (with addresses from 1
to 50) can exist in a group.
If the unit is not connected to a site controller, the NMS unit address should be left
at the factory default setting of 1 where Position 1 is Up and all other positions are
Down (see Figure 2-5).
SUPV Port Rate
S2-5
S2-6
Down
Down
Down
Up
Up
Down
Up
Up
NMS Port Rate
S2-7
S2-8
Down
Down
Down
Up
Up
Down
Up
Up
1
2
3
4
5
Switch S3
Table 2-14
Mode
Normal Operation
Begin Flash Download
LSB
1
2
4
1
2
3
0
0
0
Figure 2-5
Switch S4
Unit Configuration
Switch
S3
6
7
8
Force Download Mode
S3-8
Down
Up
Binary values
MSB
8
16
32
64
128
4
5
6
7
8
0
0
0
0
0
9
Switch
S4
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