Multi-Tech Systems 7500 用户手册
Standard Model
ION 7500 / ION 7600 User’s Guide
Page 160
Chapter 6 - Hardware Reference
Standard Model
+
_
SHORTING BLOCK or TEST BLOCK
3~ VOLTAGE INPUTS
3~ CURRENT INPUTS
V
3
V
4
V
ref
I
11
I
12
I
21
I
22
I
31
I
32
I
41
I
42
I
51
V
1
V
2
I
52
S
C
O
M
M
S
1
1
S
2
2
S
3
3
S
4
4
S
5
5
S
6
6
S
7
7
S
8
8
D3
-
+
D2
-
+
D1
-
+
D4
-
+
DIGITAL INPUTS
DIGITAL OUTPUTS
V+ (30 V max)
Relay
I/O Expansion Card
Backplate
Backplate
Communications Card
Backplate
Backplate
Power Supply
Relays
G
N
_
L
+
Rear View of Meter
R
11
R
12
R
13
R
21
R
22
R
23
R
31
R
32
R
33
External Dry Contacts
(polarity for SSR
contacts shown)
(polarity for SSR
contacts shown)
Current Inputs
see page 175
see page 175
Power Supply
see page 174
see page 174
I/O Expansion Card
see page 178
see page 178
Digital Inputs
see page 169
see page 169
Communications Card
see page 177
see page 177
Digital Outputs
see page 170
see page 170
Voltage Inputs
see page 174
see page 174