IPEX PH232T485Y11 User manual

Doc No: PH232T485Y11-UM-
001
IPEX
(IP Electronix)
5 April 2023
USER’S MANUAL
PH232T485Y11
RS-232/TTL UART to RS-485/422 ISOLATED CONVERTER

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IPEX (IP Electronix) PH232T485Y11: User’s Manual
Page 2 of 18 Doc No.: PH232T485Y11-UM-001
5 April 2023

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IPEX (IP Electronix) PH232T485Y11: User’s Manual
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CONTENTS
1. INTRODUCTION ........................................................................ 4
2. SPECIFICATIONS ....................................................................... 5
3. PACKAGE CHECKLIST................................................................. 6
4. TOP VIEW................................................................................. 7
5. BOTTOM VIEW ......................................................................... 7
6. FRONT VIEW............................................................................. 7
7. BACK VIEW............................................................................... 7
8. PORT SETTINGS ........................................................................ 8
9. RS-232 SERIAL PORT PIN CONFIGURATION.............................. 10
10. RS-485/RS-422 SERIAL PORT PIN CONFIGURATIONERROR! BOOKMARK
NOT DEFINED.
11. TTL USART SIGNALS ............................................................. 11
12. PH232T485Y11 CONNECTION DIAGRAM............................... 12
13. RS-232 CONNECTING METHODS ........................................... 13
14. RS-485 CONNECTING METHODS ........................................... 16
15. RS-422 CONNECTING METHODS ........................................... 17
16. GUARANTEE ........................................................................ 18
17. TECHNICAL SUPPORT ........................................................... 18

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IPEX (IP Electronix) PH232T485Y11: User’s Manual
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1. INTRODUCTION
IPEX PH232T485Y11 is a Bi-Directional RS-232/TTL UART to RS-485 and RS-422 Converter that
converts RxD & TxD signals of RS-232 standard to differential (Data+ & Data-) signals of RS-485
standard and (RX+, RX- & TX+, TX-) signals of RS-422 standard at a same time. It works with Baud-
Rate from 300bps to 230400bps
Since RS-485 is a Half-Duplex standard, switching between Transmit and Receive is done
automatically and further signals (such as RTS) are not required. PH232T485Y11 supports Point-to-
Point and Point-to-Multi Point Party Line network topologies.
There are 3kV Optical and Electrical insulations have between RS-232/TTL UART and RS-485/422
sides, thus using this device in the RS-485/RS-422 line, can be very effective in eliminating electrically
and electromagnetically noises.
Protection against Surge, ESD and EMI is considered in its design, so, PH232T485Y11 is good for
industrial usage and is useful for Industrial Automation, Telecommunications, SCADA Systems, DCS
Systems and …

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IPEX (IP Electronix) PH232T485Y11: User’s Manual
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2. SPECIFICATIONS
RS-232/TTL UART to RS-485/422 Bi-Directional Isolated Converter;
Number of Ports: #1 RS-232 to #1 RS-485/422 Bi-Directional Repeater;
Serial Standard: Meets or Exceeds the Requirements of TIA/EIA-232-F and ITU v.28 Standards;
RS-232 Signal (Full Flow Control Support): TxD, RxD, DTR, RTS, DSR, CTS, GND;
RS-232 Parity: Even, Odd, None, Mark and Space;
Standard TTL TxD and RxD Signals, suitable for directly connect to a Microcontroller
Serial Standard: Meets or Exceeds the Requirements of RS-485/422 Standards;
RS-485 Signal: Data+, Data-, GND;
RS-422 Signal: TX+, TX-, RX+, RX-, GND;
RS-485/422 Parity: Even, Odd, None, Mark and Space;
Maximum Communication Distance: 2400m (1200m each side);
Loading: RS-485 and RS-422 Side up to 32 Nodes are supported;
Fully Plug & Play;
Wide Range Power Supply: +8V to +48V DC;
Serial Transmission Speed up to 230.4 kbps;
Power (Green) LED Indicator;
Transmit (Blue) and Receive (Yellow) LED Indicator;
Isolation Protection: 3kV Instantaneous, 500V DC Continuous;
Surge Protection: Embedded 1500W Surge Protection;
Magnetic Isolation: 1.5 kV Built-in;
ESD Protection: Exceeds ±15 kV Using Human-Body Model (HBM);
Dimensions: 26mm x 71.6mm x 122 mm (1.03in x 2.8in x 4.82in);
Operating Temperature: -10°C to +70°C (+14°F to +158°F);
1 Year Guarantee and 5 Years Support.

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3. PACKAGE CHECKLIST
Before installing the PH232T485Y11, verify that the package contains the following items:
1) #1 PH232T485Y11 2) #1 RS-232 Male to Female Cable
3) #1 Document and Driver CD-ROM 4) #1 Quick Start Guide
NOTE: Notify your sales representative if any of the above items is missing or damaged.

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4. TOP VIEW
5. BOTTOM VIEW
6. FRONT VIEW
7. BACK VIEW

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8. PORT SETTINGS
Device Default Settings is: 9600, 8, n, 1
For change settings, connect the RS-232 port with standard cable to the computer; then open a Hyper-
Terminal software (a copy of it, is in the Product CD in Utility folder) with the settings as following
picture.
Then turn on the device; you can see blow device massage.
To change settings, press number ‘1’.
-Parity
“None”, “Even” and “Odd” Parity type are supported by PH232T485Y11. The Parity setting are
shown in the following table.

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-Stop Bit
1 and 2 bits are selectable for Stop Bit according to the following figure:
-Data-Length
5, 6, 7, 8, 9-Bits Data-Length are supported by PH232T485Y11. Set Data-Length according to the following
figure:
-Baud-Rate
In this section you can change Baud-Rate from 600bps to 230400bps.

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9. RS-232 SERIAL PORT PIN CONFIGURATION
1
2
3
4
5
6
7
8
9
PIN
DCD
RxD
TxD
DTR
GND
DSR
RTS
CTS
RI
NAME
OUTPUT
INPUT
OUTPUT
OUTPUT
OUTPUT
INPUT
INPUT
OUTPUT
GROUND
TYPE
Data Communication Equipment (DCE)

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10.TTL USART Signals
DCE
(PH232T485Y11)
DTE
Microcontroller
Necessary
GND
GND
Necessary
TXD
TXD
Necessary
RXD
RXD
Connecting Method: Connect GND to Microcontroller Board’s GND, Connect TXD directly to TXD of
Microcontroller and RXD directly to RXD of Microcontroller if your Microcontroller has TTL Logic.

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11. PH232T485Y11 CONNECTION DIAGRAM
-PH232T485Y11 in RS-485 Mode
-PH232T485Y11 in RS-422 Mode
-PH232T485Y11 in Mixed Mode
It is possible to use PH232T485Y11 in mixed mode, this means you can use each port as RS-485 or
RS-232 separately.

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12. RS-232 CONNECTING METHODS
-Modem Connection (to a Modem, any DCE devices)
Modem or other DCE devices
DB9-Female Pin Number
DTE
DB9-Male Pin Number
Pin 1: DCD (Output)
Pin 1: DCD (Input)
Pin 2: RxD (Output)
Pin 2: RxD (Input)
Pin 3: TxD (Input)
Pin 3: TxD (Output)
Pin 4: DTR (Input)
Pin 4: DTR (Output)
Pin 5: GND (Ground)
Pin 5: GND (Ground)
Pin 6: DSR (Output)
Pin 6: DSR (Input)
Pin 7: RTS (Input)
Pin 7: RTS (Output)
Pin 8: CTS (Output)
Pin 8: CTS (Input)
Pin 9: RI (Output)
Pin 9: RI (Input)
(Modem Cable)

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-Null Modem Connection (to PC, PLC, RTU or any other DTE devices)
PC, PLC or other DTE devices
DB9-Male Pin Number
DTE
DB9-Male Pin Number
Pin 7: RTS (Output)
Pin 1: DCD (Input)
Pin 3: TxD (Output)
Pin 2: RxD (Input)
Pin 2: RxD (Input)
Pin 3: TxD (Output)
Pin 6: DSR (Input)
Pin 4: DTR (Output)
Pin 5: GND (Ground)
Pin 5: GND (Ground)
Pin 4: DTR (Output)
Pin 6: DSR (Input)
Pin 8: CTS (Input)
Pin 7: RTS (Output)
Pin 7: RTS (Output)
Pin 8: CTS (Input)
Pin 1: DCD (Input)
Pin 7: RTS (Output)
(Null Modem Cable)

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-Simple Null Modem Connection (to PC, PLC… Without Hardware Flow control)
PC, PLC or other DTE devices
DB9-Male Pin Number
DTE
DB9-Male Pin Number
Pin 3: TxD (Output)
Pin 2: RxD (Input)
Pin 2: RxD (Input)
Pin 3: TxD (Output)
Pin 5: GND (Ground)
Pin 5: GND (Ground)
(Simple Null Modem Cable (Without Hardware Handshaking))

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13. RS-485 CONNECTING METHODS
-RS-485: Point to Point Connection
-RS-485: Multipoint Network

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14. RS-422 CONNECTING METHODS
-RS-422: Point to Point
-RS-422: Multi-Drop Network

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15. GUARANTEE
All products manufactured by IPEX are under warranty regarding defective materials for
a period of one year from the date of delivery to the original purchaser.
16. TECHNICAL SUPPORT
If you have any technical question or need any technical support, please contact us
using this Email address: [e-mail].