— 4 —
— 5 —
— 6 —
6. Pin Assignments and Cable Wiring
RS-232/422/485 (Male DB9) Pinouts
1 2 3 4 5
6 7 8 9
PIN RS-232
RS-422/
RS-485 (4W)
RS-485 (2W)
1 DCD TxD-(A)
---
2 RXD TxD+(B)
---
3 TXD RxD+(B) Data+(B)
4 DTR RxD-(A) Data-(A)
5 GND
GND
GND
6 DSR
---
---
7 RTS
---
---
8 CTS
---
---
9 ---
---
---
Four cables are available as optional accessories that can be used to
connect NPort IA to RS-232 serial devices. For your convenience, we
show precise cable wiring diagrams for each of the two cables.
Female DB9 to Male DB9
NPort IA
9 pins
9 pins
DCD
RxD
TxD
DTR
GND
DSR
RTS
CTS
RS-232
Device
DCD
TxD
RxD
DSR
GND
DTR
CTS
RTS
Cable Wiring
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Female DB9
Male DB9
Male DB9
Female DB9
Female DB9 to Male DB25
NPort IA
9 pins
25 pins
DCD
RxD
TxD
DTR
GND
DSR
RTS
CTS
RS-232
Device
DCD
TxD
RxD
DSR
GND
DTR
CTS
RTS
Cable Wiring
1
2
3
4
5
6
7
8
8
3
2
20
7
6
4
5
Female DB9
Male DB25
Male DB9
Female DB25
7. Specifications
Power requirements
NPort IA5250I/5250I-T: 12 to 48 VDC, 440 mA
at 12 V (max.)
Operating temp.
0 to 55°C (32 to 131°F),
-40 to 75
◦
C (-40 to 167
◦
C) for wide temp model
Operating humidity
5 to 95% RH
Dimensions
(W×D×H)
29 × 89.2 × 118.5 mm
1.14 × 3.51 × 4.67 in
Surge protection
15 KV ESD for all signals
Isolation protection
2KV for RS-232/422/485
Magnetic isolation
1.5 KV for Ethernet
Power line protection
4 KV Burst (EFT), EN61000-4-4
2 KV Surge, EN61000-4-5
Regulatory approvals
FCC Class A, CE Class A
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2009 Moxa Inc. All rights reserved.
Reproduction without permission is prohibited.
