ioPAC 6500 Series (65M) I/O Modules

I/O modules for modular programmable IIN controllers

Features and Benefits

Error-proof design to prevent erroneous installations
Tool-free hardware installation and hot-swap design for maximizing operation efficiency
Fully modular design for maximum deployment flexibility

Certifications

Introduction

The ioPAC 6500 Series (also referred to as Intelligent Integrated Node or IIN) is an advanced Linux-based RTU featuring a built-in Layer-2 managed switch. Equipped with an Arm Cortex-A53 quad-core CPU, the ioPAC 6500 Series delivers robust performance.

Error–proof Design With Arrow Pins

The arrow-pin design on the I/O and terminal block (TB) modules prevents erroneous installations. Each I/O module has its own TB module with a unique TB arrow ID.

Fully Modular Design

The ioPAC 6500 Series features a unique Lego-like mechanical design that allows for flexible deployment while minimizing installation efforts. The series can be divided into the components: Backplane modules, power modules, communication modules, expansion modules, CPU modules, I/O modules, and terminal-block modules.

Download datasheet
Print this page
Save

You can manage and share your saved list in My Moxa

Digital Input Channels

65M-1900-CT-T: 32
Digital Output Channels

65M-2901-CT-T: 32
Analog Input Channels

65M-3600-CT-T: 16 (current)
65M-3610-CT-T: 16 (voltage)
65M-3800H-CT-T: 8 (HART)
Analog Output Channels

65M-4820-CT-T: 8
Serial Channels

65M-5801-CT-T: 8
Isolation

65M-3600-CT-T/65M-3610-CT-T/65M-4820-CT-T/65M-5801-CT-T:
- Between signal and system: 3k VDC
- Between groups: 1k VDC per min
All other models:
- Between signal and system: 3k VDC

I/O Type

Sink
(Internal/external field circuit supply for dry contact)
I/O Mode

DI or event counter
(channels 1 to 8, group configurable by software)
Internal Field Circuit Supply Voltage

24 VDC
22.8 to 25.2 VDC
Internal Field Circuit Supply Current

125 mA (max.)
(Only for dry contact)
Input Voltage

On: 11 to 30 VDC
Off: 0 to 5 VDC
Input Current (voltage on)

2.35 mA ± 20% per channel
Counter Frequency

Square wave: 0 to 10 kHz
Digital Filtering Time Interval

Software configurable
Diagnostics

Input Wire-break Detection (current: 50 µA max., delay: 20 ms)
Internal Field Circuit Supply Detection (17.5 VDC, 16 to 19 VDC)

I/O Type

Source
I/O Mode

DO or pulse output
(channel 1 to 8, group configurable by software)
Common Power Input Voltage

24 VDC
19.2 to 28.8 VDC
Common Power Input Current

6.4 A (max.)
Load Current

200 mA/channel (typ.)
500 mA/channel (max.)
Pulse Duration

500 μs
Protection

Output Short-circuit Protection
Common Power Input Over-voltage Protection
Inductive Load Shutdown Voltage Protection
Diagnostics

Wire Break Detection (on state, output current < 3 mA)
Wire Break Detection (off state, output load impedance > 58 kilo-ohms)
Output Short-Circuit Detection (output current > 0.87 A, range: 0.64 to 1.2 A)
External Power Detection (17.5 VDC, 16 to 19 VDC)
Failsafe Configuration (hold last/failsafe state)

I/O Mode

65M-3600-CT-T: Current
65M-3610-CT-T: Voltage
65M-3800H-CT-T: HART
I/O Type

Differential
Input Range

65M-3600-CT-T:
0 to 20 mA
4 to 20 mA
65M-3610-CT-T:
0 to 10 V
1 to 5 V
65M-3800H-CT-T:
4 to 20 mA
Overload Permitted on Inputs

65M-3600-CT-T: ±30 mA
65M-3610-CT-T: ±12 V
65M-3800H-CT-T: 30 mA
Internal Loop Power Supply Current

65M-3600-CT-T:
200 mA / Group (max.)
65M-3800H-CT-T:
500 mA (max.)
(only for 2-wire connection)
Internal Loop Power Supply Voltage

65M-3600-CT-T:
24 VDC
22.8 to 25.2 VDC
Converter Resolution

16 bits
Measurement Resolution

65M-3600-CT-T:
2 μA (0 to 20 mA)
1.6 μA (4 to 20 mA)
65M-3610-CT-T:
1 mV (0 to 10 V)
0.4 mV (1 to 5 V)
65M-3800H-CT-T:
1.6 μA (4 to 20 mA)
Accuracy

±0.1% FSR @ 25°C
±0.3% FSR @ -40 to 75°C
Conversion Time

100 ms
Rejection Ratio

Normal mode: > 60 dB @ 60 Hz (min.), conversion time: 100 ms
Common mode: > 90 dB @ 60 Hz (min.), conversion time: 100 ms
Input Impedance

65M-3800H-CT-T: 250 ohms
65M-3600-CT-T: 250 ohms
65M-3610-CT-T: 1 mega-ohms
Diagnostics

65M-3800H-CT-T:
Input Wire-break
Input Short-circuit
Input Underflow/Overflow Detection
65M-3600-CT-T:
Internal Loop Power Detection (17.5 VDA, 16 to 19 VDC)
Input Short-circuit Detection
65M-3600-CT-T (in 4 to 20 mA mode):
Input Wire-break Detection (delay: 0.8 s)
65M-3610-CT-T:
Input Wire-break Detection (delay:1.6 s max)

I/O Mode

Voltage/Current
Output Range

0 to 10 V
1 to 5 V
0 to 20 mA
4 to 20 mA
Converter Resolution

16-bit
Output Resolution

1 mV (0 to 10 V)
0.4 mV (1 to 5 V)
2 μA (0 to 20 mA)
1.6 μA (4 to 20 mA)
Accuracy

±0.1% FSR @ 25°C
±0.3% FSR @ -40 to 75°C
Output Refresh Time

16 ms
Output Impedance

Voltage mode:
1 kilo-ohms (min.)
Current mode:
750 ohms (max.)
Diagnostics

Output Short-circuit Detection (voltage)
Failsafe Configuration (hold last/failsafe state)
Output Wire-break Detection (current)

Serial Standards

RS-232, RS-422, RS-485-2w
Baudrate

300, 600, 1200, 1800, 2400, 4800, 9600, 19200, 38400, 57600, and 115200 bps
Data Bits

7, 8
Stop Bits

1, 2
Parity

None
Even
Odd
Flow Control

RTS/CTS, XON/XOFF
Serial Signals

RS-232: TxD, RxD, RTS, CTS, GND
RS-422: Tx+, Tx-, Rx+, Rx-, GND
RS-485-2w: Data+, Data-, GND

ID

65M-TB-1900-CT-T: D1
65M-TB-2901-CT-T: D2
65M-TB-3600-CT-T: A1
65M-TB-3610-CT-T: A2
65M-TB-3800H-CT-T: A3
65M-TB-4820-CT-T: A5
65M-TB-5801-CT-T: F1
Note: Terminal blocks need to be purchased separately. See the Accessories section/list for details.
Connector

Screw-fastened terminal block
Dimensions

42.3 x 102.38 x 80.8 mm (1.67 x 4.03 x 3.18 in)
Weight

164 g (0.36 lb)

System Power

65M-1900-CT-T/65M-2901-CT-T:
0.068 A @ 12 VDC
65M-3610-CT-T/65M-4820-CT-T:
0.069 A @ 12 VDC
65M-3600-CT-T:
0.073 A @ 12 VDC
65M-3800H-CT-T:
0.072 A @ 12 VDC
65M-5801-CT-T:
0.143 @ 12 VDC
Field Power

65M-1900-CT-T:
0.019 A @ 24 VDC (without internal field circuit supply)
0.115 A @ 24 VDC (32-channel dry contact with internal field circuit supply)
65M-2901-CT-T:
0.005 A @ 24 VDC
65M-3600-CT-T:
0.053 A @ 24 VDC (without internal loop power)
0.466 A @ 24 VDC (16-channel 20 mA input with internal loop power)
65M-3610-CT-T:
0.038 A @ 24 VDC
65M-3800H-CT-T:
0.05 A (max.) @ 24 VDC (without internal loop power)
0.25 A (max.) @ 24 VDC (8-channel 4 to 20 mA input with internal loop power all in 20 mA)
0.66 A (max.) @ 24 VDC (500 mA input with internal loop power)
65M-4820-CT-T:
0.022 A @ 24 VDC (without external load)
0.266 A @ 24 VDC (4-channel 20 mA output)
65M-5801-CT-T:
0.11 A @ 24 VDC

Housing

Plastic
Dimensions

42 x 116 x 130 mm (1.65 x 4,57 x 5.12 in)
Weight

65M-3610-CT-T: 250 g (0.55 lb)
65M-1900-CT-T: 253 g (0.56 lb)
65M-2901-CT-T: 254 g (0.56 lb)
65M-4820-CT-T: 257 g (0.57 lb)
65M-5801-CT-T: 259 g (0.57 lb)
65M-3800H-CT-T: 262 g (0.58 lb)
65M-3600-CT-T: 267 g (0.59 lb)

Operating Temperature

-40 to 75°C (-40 to 167°F)
Note: Proper airflow is required in an environment with temperature > 65°C.
Storage Temperature (package included)

-40 to 85°C (-40 to 185°F)
Ambient Relative Humidity

5 to 95% (non-condensing)
Altitude

Up to 2000 meters Please contact Moxa if you require products guaranteed to function properly at higher altitudes.

EMC

EN 55032/35
EN 61000-6-2/-6-4
EMI

CISPR 32, FCC Part 15B Class A
EMS

IEC 61000-4-2 ESD: Contact: 4 kV; Air: 8 kV
IEC 61000-4-3 RS: 80 MHz to 1 GHz: 10 V/m
IEC 61000-4-4 EFT: Power: (DC) 1 kV; Signal: 1 kV
IEC 61000-4-5 Surge: Power: (DC) 0.5 kV L-N, 1 kV L/N-PE; Signal: 1 kV; IO: 0.5 kV
IEC 61000-4-6 CS: Power: (DC) 10 V; Signal: 10 Vrms
IEC 61000-4-8 PFMF: 30 A/m
Safety

UL 61010-1
UL 61010-2-201
Shock

IEC 60068-2-27
Half sine wave; acceleration: 15 g; time: 11 ms
Vibration

IEC 60068-2-6
DIN-rail mounted:
7 mm peak-peak (p-p) (2 to 8.42 Hz), 1 g (8.42 to 150 Hz)
Rack mounted (with optional kit):
7 mm peak-peak (p-p) (2 to 8.42 Hz), 0.5 g (8.42 to 150 Hz)

Time

65M-5801-CT-T: 2,310,512 hrs
65M-3610-CT-T: 1,885,953 hrs
65M-4820-CT-T: 1,874,152 hrs
65M-1900-CT-T: 2,057,118 hrs
65M-2901-CT-T: 2,007,795 hrs
65M-3600-CT-T: 1,686,798 hrs
65M-3800H-CT-T: 1,016,573 hrs
Standards

Telcordia Standard SR-332

Warranty Period

5 years
Details

See www.moxa.com/warranty

Download datasheet

Software, Firmware, and Drivers

Name	Type	Checksum	Version	Operating System	Release Date
ioPAC 6500 Series Firmware Download 292.3 MB	Firmware	92658EE2975D3685F721E100017892E3D686CB199C3A7DDE5E7D7AB0E2596116F35BCA32B9A4357B9FD1FA0457EA47AAC44D35F4A5E3A2027B4AC45798B0E921 SHA-512	v1.1		Nov 28, 2025 Nov 28, 2025 Release notes
ioPAC 6500 Series Utility - IINxpress Download 956.5 MB	Utility	42BC292CCC75DA3AE26A0231BFA41D758E9783278AD3CACCF444C072162A9B063B04345F05C1149BABC0AA8ED2F732672FBF8D16CE2A24212639A1506C3F55A4 SHA-512	v1.1	Windows 10 Windows 11	Nov 28, 2025 Nov 28, 2025 Release notes
ioPAC 6500 Series MIB file Download 95.6 KB	Software Package	1D70CB9608F958A931894B3DECCAC4048F1D13F50F6F7EA23C692BE20E2EA14441125CF7FE81921C8C6830C2362F46B54050793DDEB7072799229E84E992F986 SHA-512	v1.0		Aug 20, 2025 Aug 20, 2025 Release notes
ioPAC 6500 Series HART DTM Download 7.9 MB	Software Package	C33540C19EFFDC3816B079820546DEF582ACF61DD0675B7236469F9E48638693CCD789C7336A494D38CED083A0D1799891AB165D7A669CCCACEA372061DCC0F9 SHA-512	v1.1		Jul 24, 2025 Jul 24, 2025 Release notes

Support Documents

Name	Type	Version	Release Date
ioPAC 6500 Series User Manual Download 24.7 MB	Manual	v1.2	Jan 30, 2026 Jan 30, 2026
Datasheet for ioPAC 6500 Series (65M) I/O Modules Download 2.4 MB	Datasheet	v1.1	Nov 07, 2025 Nov 07, 2025
ioPAC 6500 (65M) IO, IO Backplane, and Terminal Block Modules Quick Installation Guide Download 1.9 MB	QIG	v1.2	Nov 07, 2025 Nov 07, 2025
ioPAC 6500 Series (65M) I/O Modules HART Module Configuration Manual (PACTware) Download 3.0 MB	Manual	v1.0	Nov 07, 2025 Nov 07, 2025
Declaration of Conformity (EU/UK) for ioPAC 6500 Series with 65M Modules Download 363.7 KB	Declaration	v1.0	Aug 18, 2025 Aug 18, 2025
QIG for ioPAC 6500 Series (65M) I/O Modules Download 1.6 MB	QIG	v1.0	Mar 17, 2025 Mar 17, 2025

Available Models (7)

Show Images

	Compare 65M-1900-CT-T	Compare 65M-2901-CT-T	Compare 65M-3600-CT-T	Compare 65M-3610-CT-T
No. of I/O Interfaces	DIs x 32	DOs x 32	AIs x 16	AIs x 16
Digital Inputs/Outputs	24 VDC	24 VDC	–	–
Analog Inputs/Outputs	–	–	0 to 20 mA 4 to 20 mA	0 to 10 V 1 to 5 V
HART	–	–	–	–
Operating Temperature	-40 to 75°C	-40 to 75°C	-40 to 75°C	-40 to 75°C
	Add to Quote View Bag	Add to Quote View Bag	Add to Quote View Bag	Add to Quote View Bag

	Compare 65M-4820-CT-T	Compare 65M-3800H-CT-T	Compare 65M-5801-CT-T
No. of I/O Interfaces	AOs x 8	AIs x 8 (HART)	Serial Ports x 8
Digital Inputs/Outputs	–	–	–
Analog Inputs/Outputs	0 to 10 V 1 to 5 V 0 to 20 mA 4 to 20 mA	4 to 20 mA	–
HART	–	enable disable (default)	–
Operating Temperature	-40 to 75°C	-40 to 75°C	-40 to 75°C
	Add to Quote View Bag	Add to Quote View Bag	Add to Quote View Bag