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Appendix E
NT-AL001 RS-422A terminal block specifications
Connected terminal block: RS-422A terminal block (M3 screws)
Electrical characteristics: Conform to EIA RS-422A
Signal direction: Signal input and output is relative to the NT-AL001.
Terminal Block
S
i
g
n
a
l
N
a
m
e
A
b
b
r
e
v
i
a
t
i
o
n
Signal Direction
T
e
r
m
i
n
a
l
B
l
o
c
k
Pin No.
S
i
gna
l
N
ame
A
b
b
rev
i
at
i
on
Input Output
8 Request to send (--) CSA
7 Request to send (+) CSB
6 Receive data (--) RDA
5 Receive data (+) RDB
4 Send data (--) SDA
3 Send data (+) SDB
2 Signal ground SG (GND) -- --
1 Functional ground FG -- --
The CSB and CSA signals are for special applications.
Wiring
[For NT600S-ST211(B)-V ]
Shielding
wire
NT600S
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
SD
RD
RS
CS
+5V
--
--
SG
FG
SD
RD
RS
CS
+5V
SG
FG
SG
SDB
SDA
RDB
RDA
CSB
CSA
RS-232C
interface
RS-232C
interface
RS-422A
interface
RS-422A
interface
Pin No.Abbrev.
RS-232C
(9-pin)
NT-AL001
Abbrev.
(9-pin)
Abbrev.
Terminal
No.
Terminal block
Shielding
wire
Host
Signal Name
Ground for safety
Signal ground
Receive data (+)
Receive data (--)
Send data (+)
Send data (--)
Request to send (+)
Request to send (--)
*
*
RS-422A
Pin No.
[For NT600S-ST121(B)-V ]
Shielding
wire
NT600S
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
SD
RD
RS
CS
+5V
--
--
SG
FG
SD
RD
RS
CS
+5V
SG
FG
SG
SDB
SDA
RDB
RDA
CSB
CSA
RS-232C
interface
RS-232C
interface
RS-422A
interface
RS-422A
interface
Pin No.Abbrev.
RS-232C
(9-pin)
NT-AL001
(9-pin)
Abbrev.
Terminal
No.
Terminal block
Shielding
wire
Host
Signal Name
Ground for safety
Signal ground
Receive data (+)
Receive data (--)
Send data (+)
Send data (--)
Request to send (+)
Request to send (--)
*
*
RS-422A
+5V
(150mA)
Abbrev.Pin No.
(*) CSB and CSA are connected when the NT600S requires RS/CS control for the host control method.