TraxBus conversion to the following standard physical layers:
• EIA-RS232
• EIA-RS485
TraxInterface4 can drive up to 250 remote peripherals operating in two different modes:
• Transparent
• Modbus® ASCII / RTU
An additional service port is available for monitoring and configuration.
A complete galvanic isolation is provided between local interfaces to fieldbus and power supply.
MAIN PORT SubD9 FEMALE | A |
---|---|
POWER SUPPLY AND BUS TERMINALS | B |
C | SERVICE PORT RJ45 |
---|---|
D | FUSE (REMOVE TOP COVER) |
ORDER CODE | DESCRIPTION | NOTE |
---|---|---|
1304.00.02 |
TraxInterface4.232 EIA-RS232 › TraxBus interface converter Transparent or Modbus |
ACTIVE |
1304.00.04 |
TraxInterface4.485 EIA-RS485 › TraxBus interface converter Transparent or Modbus |
ACTIVE |
2505.00.01 |
Mobi.Link Cable RJ45–DB9 RS232 Communication cable for service port |
ACTIVE |
2505.00.03 |
Mobi.Link USB Cable RJ45–USB type A Communication cable for service port |
ACTIVE |
Master controller is connected to SubD 9 female socket. The cable coming from master controller must be terminated with a SubD male socket (see below).

EIA – RS232 | |
DATA OUTPUT – TX | 2 |
---|---|
DATA INPUT – RX | 3 |
SIGNAL GROUND – SG | 5 |

EIA – RS485 | |
1 | Tx/Rx – NEGATIVE |
---|---|
2 | Tx/Rx – POSITIVE |
5 | SG – SIGNAL GROUND |


POWER SUPPLY – AC/DC | 1 |
---|---|
POWER SUPPLY – AC/DC | 2 |
POWER SUPPLY – AC/DC | 3 |
POWER SUPPLY – AC/DC | 4 |
5 | TRAXBUS – NEGATIVE |
---|---|
6 | TRAXBUS – NEGATIVE |
7 | TRAXBUS – POSITIVE |
8 | TRAXBUS – POSITIVE |
Power Supply
- • Voltage24VAC / 30 VDC ±10%
- • Frequency0 … 200 Hz
- • Line fuse3A
- • Power consumption8 … 70 VA
- • Power dissipation3 … 20W
- • Isolation4000 VDC / 1s
- • Terminals4x2,5 mm2
Environment
- • Operating Temperature-20 … +60 °C
- • Storage Temperature-40 … +85 °C MAX
- • EnclosureUL94-V0
- • Protection ClassIP20
- • Relative Humidity30 … 90% 1
- • Dimensions71 × 90 × 58 mm
- • Mounting Position ANY
TraxBus Interface
- • TypeASYN MULTIDROP HALF DUPLEX
- • Peripherals300 MAX
- • Baud Rate38400 MAX
- • Bus Voltage≤ 30 VDC
- • Bus Current< 2,5 A
- • Allowable Voltage Dropout< 3V
- • Allowable Line Capacitance< 100nF
- • Isolation3750 VRMS
- • Terminals4x2,5 mm2
EIA-RS232
- • Data formatSERIAL ASYN UART/NRZ
- • Device typeDCE
- • ProtocolsTransparent, Modbus ASCII/RTU
- • Baud Rate4k8 9k6 19k2 38k4 57k6 115k2
- • Data framing transparent8N1 | 8N2
- Data framing Modbus8N2 | 8E1 | 8O1
EIA-RS485
- • Multidrop units32 MAX
- • Line Length1200 m MAX
- • ProtocolsTransparent, Modbus ASCII/RTU
- • Baud Rate4k8 9k6 19k2 38k4 57k6 115k2
- • Data framing transparent8N1 | 8N2
- Data framing Modbus8N2 | 8E1 | 8O1
SERVICE PORT (RS232)
- • Data formatSERIAL ASYN UART/NRZ
- • Baud Rate19200
- • Data framing8N1
- 1 NON CONDENSING
EIA RS232 – TRAXBUS
Is the easiest way to implement TraxBus when the number of remote peripherals and the system architecture does not require more than 1 TraxBus line. A single master controller is connected to SubD 9 female socket: only RxD, TxD and GND are required.

EIA RS485 – TRAXBUS
EIA-RS485 operates in push-pull action over two lines, allowing the connection of up to 32 transceivers, thus can be used to drive one or more TraxBus lines. A single master controller is connected to SubD 9 female of one or more TraxInterface4.
