9
1
9
2
10
3
11
4
12
5
13
6
14
7
15
8
16
POWER
CPU OFF
FAULT
CONTROL INPUT UNIT SX-2000CI
17
25
18
26
19
27
20
28
21
29
22
30
23
31
24
32
CONTROL INPUT
1
9
2
10
3
11
4
12
5
13
6
14
7
15
8
16
POWER
CPU OFF
FAULT
CONTROL OUTPUT UNIT SX-2000CO
17
25
18
26
19
27
20
28
21
29
22
30
23
31
24
32
CONTROL OUTPUT
SX-2000CI
SX-2000CO
Power supply unit (1)
Power supply unit (2)
Program timer
Power supply unit (3)
Power supply unit (4)
Digital announce machine
A method of connecting separate power sources to each power
input or connecting the commercial power supply and backup
power supply separately to each power input to prevent the
system from going down when a cable is broken or power fails.
*
Redundant power supply system*
4.2.1. Connection example 1
Connect each 2 power supply units to the SX-2000CI and SX-2000CO separately. (See p. 10 and 15.)
1
9
2
10
3
11
4
12
5
13
6
14
7
15
8
16
POWER
CPU OFF
FAULT
CONTROL INPUT UNIT SX-2000CI
17
25
18
26
19
27
20
28
21
29
22
30
23
31
24
32
CONTROL INPUT
1
9
2
10
3
11
4
12
5
13
6
14
7
15
8
16
POWER
CPU OFF
FAULT
CONTROL OUTPUT UNIT SX-2000CO
17
25
18
26
19
27
20
28
21
29
22
30
23
31
24
32
CONTROL OUTPUT
SX-2000CI
SX-2000CO
Power supply unit (1)
Program timer
Power supply unit (2)
Digital announce machine
4.2.1. Connection example 2
Connect each one power supply unit to the SX-2000CI and SX-2000CO separately. (See p. 11 and 15.)
1
9
2
10
3
11
4
12
5
13
6
14
7
15
8
16
POWER
CPU OFF
FAULT
CONTROL INPUT UNIT SX-2000CI
17
25
18
26
19
27
20
28
21
29
22
30
23
31
24
32
CONTROL INPUT
1
9
2
10
3
11
4
12
5
13
6
14
7
15
8
16
POWER
CPU OFF
FAULT
CONTROL OUTPUT UNIT SX-2000CO
17
25
18
26
19
27
20
28
21
29
22
30
23
31
24
32
CONTROL OUTPUT
SX-2000CI
SX-2000CO
Digital announce machine
Power supply unit (1)
Power supply unit (2)
Terminal unit
Program timer
Terminal unit
Supplies power from
the SX-2000CI side
Redundant power
supply system
4.2.1. Connection example 3
Connect 2 power supply units to the SX-2000CI only via Terminal unit. (See p. 11.)
1
9
2
10
3
11
4
12
5
13
6
14
7
15
8
16
POWER
CPU OFF
FAULT
CONTROL INPUT UNIT SX-2000CI
17
25
18
26
19
27
20
28
21
29
22
30
23
31
24
32
CONTROL INPUT
1
9
2
10
3
11
4
12
5
13
6
14
7
15
8
16
POWER
CPU OFF
FAULT
CONTROL OUTPUT UNIT SX-2000CO
17
25
18
26
19
27
20
28
21
29
22
30
23
31
24
32
CONTROL OUTPUT
SX-2000CI
SX-2000CO
Digital announce machine
Power supply unit
Terminal unit
Program timer
Terminal unit
: CI/CO link
: Power cable
: CPEV cable
: Control line
Supplies power from
the SX-2000CI side
4.2.1. Connection example 4
Connect a single power supply unit to the SX-2000CI only via Terminal unit. (See p. 13.)
4.2. Connection Example
There are 4 connection configurations depending on the DC power supply and CI/CO link connections.
Note:
For the detailed information on the connections of power supply unit and CI/CO links, refer to the page
indicated at the end of each "Connection example."
