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TABLE 12
Modes of Operation
b. Set the Mode of Operation for Each Circuit
The CSM-4 has one programming slide
switch and one jumper for each of its two
circuits. (See slide switches S3 and S4 and
jumpers G1 and G2 on the CSM-4 board,
Figure 12, page 1-8.) Setting these slide
switches and jumpers allows the selection
of four possible modes of operation. These
modes correspond with NFPA standards 72
Local, Municipal Tie, Leased Line, and
NFPA 13 and 2001 Releasing Service.
Each circuit on the CSM-4 can be set
independently for the type of operation
desired. Table 12 shows how to set the
switches and jumpers for circuits 1 and 2.
The CSG-M printout shows the mode for
each circuit.
c. Set the Degrade Modes of Operation
There are two sources of degrade activa-
tion, the degrade alarm bus and the de-
grade trouble bus. These two buses
become active ONLY when the MXL-IQ
communication network fails. Dipswitch S2
on the CSM-4 sets the degrade mode of
operation for each circuit.
TABLE 13
Setting the Mode of Operation for the CSM-4
(Using S3, S4 and G1, G2)
F
r o
i C
c r
u
t i
1
A
u
d
b i
e l
s
N [
A
] C
N (
F
P
A
7
2
L
o
c
a
M
u
n
c i
p i
l a
T
e i
N (
F
P
A
7
) 2
L
e
a
s
e
d
L
n i
e
N (
F
P
A
7
2
R
e
m
o
e t
t S
t a
o i
) n
R
e
e l
a
s
n i
g
S
e
v r
c i
e
N (
F
P
A
1
3
* )
R
e
e l
a
s
n i
g
S
e
v r
c i
e
N (
F
P
A
2
0
0
1
* )
I
e l l
g
l a
R (
e
s
u
s t l
n i
a
t
o r
u
b
e l
o
n
h t
e
C
S
M
-
) 4
F
r o
i C
c r
u
t i
2
A
u
d
b i
e l
s
N [
A
] C
N (
F
P
A
7
2
L
o
c
a
M
u
n
c i
p i
l a
T
e i
N (
F
P
A
7
) 2
L
e
a
s
e
d
L
n i
e
N (
F
P
A
7
2
R
e
m
o
e t
t S
t a
o i
) n
R
e
e l
a
s
n i
g
S
e
v r
c i
e
N (
F
P
A
1
3
* )
R
e
e l
a
s
n i
g
S
e
v r
c i
e
N (
F
P
A
2
0
0
1
* )
I
e l l
g
l a
R (
e
s
u
s t l
n i
a
t
o r
u
b
e l
o
n
h t
e
C
S
M
-
) 4
*
C
A
N
A
D
A
O
N
L
: Y
D
o
n
t o
c
t u
u j
m
p
e
a
n
d
N
F
P
A
2
0
0
. 1
Each circuit operates independently in the
degrade mode. Dipswitch S2, positions
SW1 and SW2, determines the degrade
mode of operation when the trouble bus
activates. Dipswitch S2, positions SW3-
SW6, determines the degrade mode of
operation when the alarm bus activates.
S
3
P
o
s
t i
o i
n
G
1
) l
1
N
t o
C
t u
1
C
t u
2
N
t o
C
t u
1
C
t u
1
C
t u
2
C
t u
S
4
P
o
s
t i
o i
n
G
2
) l
1
N
t o
C
t u
1
C
t u
2
N
t o
C
t u
1
C
t u
1
C
t u
2
C
t u
s r
G
1
a
n
d
G
2
f
r o
N
F
P
A
1
3
Installation
2-15
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