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ALTUS Nexto NX3004 User Manual

ALTUS Nexto NX3004
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3. Installation
26
Figure 3-5. DB9 Female Connector, NX3004/NX3005 CPU (COM 1) and NX3010/NX3020/NX3030 CPU
(COM 2)
Pin
Sign
Description
1
-
Not used
2
Term+
Internal Termination, positive
3
TXD+
Data Transmission, positive
4
RXD+
Data Reception, positive
5
GND
Negative Reference for External Termination
6
+5V
Positive Reference for External Termination
7
Term-
Internal Termination, negative
8
TXD-
Data Transmission, negative
9
RXD-
Data Reception, negative
Table 3-5. DB9 Female Connector Pin Layout, COM 1 (NX3004/NX3005) and COM 2
(NX3010/NX3020/NX3030)
RS-485 Communication without termination
In order to connect in a RS-485 network with no termination in COM 1 (NX3004 or NX3005) or
COM 2 (NX3010, NX3020 or NX3030) interface, the cable AL-1763 identified terminals must be
connected in the respective device terminals, as shown on Table 3-6.
AL-1763 terminals
Device terminal signals
0
Shield
1
Not connected
2
D+
3
D+
4
Not connected
5
Not connected
6
Not connected
7
D-
8
D-
Table 3-6. RS-485 Connections with no Termination
The Figure 3-6 diagram indicates how the AL-1763 connection terminals should be connected in the
device terminals.

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ALTUS Nexto NX3004 Specifications

General IconGeneral
BrandALTUS
ModelNexto NX3004
CategoryProcessor
LanguageEnglish