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Details
DSA-RS485/RS232 communication barrier
· RS485 (or RS232) signal, intrinsically safe input. Distribution voltage 9V, 12V. The RS485 signal is converted to an isolated RS485 (or RS232) signal. The RS232 signal is converted to an isolated RS485 signal. Terminal supply or DIN rail power supply is available.
· The DSA-RS485 communication barrier is used to provide isolated DC power to the instrument in the hazardous area of the field, and the RS485 (or RS232) signal is isolated and converted into RS485 (or RS232) signal to the safety zone to realize the danger zone and safety zone. Two-way communication. The product requires independent power supply, power-input-output three isolation
· Danger zone signal: RS485 digital signal (or RS232 digital signal).
· Safety zone signal: RS485 digital signal (or RS232 digital signal).
· Signal transmission rate: ≤ 56kbps. Transmission delay: ≤10uS.
· Card-mounted structure, mounted on a 35mm DIN standard rail card. Screw terminal, the wiring is fastened by M3 screw.
Model /Selection Table:
|
Option |
Model and code |
Description |
|
Basic model |
DSA-RS485 |
RS485 communication barrier |
|
DSA-RS232 |
RS232 communication barrier |
|
|
Signal conversion |
-1 |
RS485 signal is converted to isolated RS485 signal |
|
-2 |
RS485 signal converted to isolated RS232 signal |
|
|
-3 |
Dual channel, RS485 signal is converted to isolated RS485 signal |
|
|
-4 |
RS232 signal converted to isolated RS485 signal (only for model DSA-RS232 option) |
|
|
-Z |
Special order |
|
|
Power distribution function |
P |
9V power distribution or 12V power distribution |
|
|
Default, no power distribution |
|
|
Power supply voltage |
-V1 |
power supply (terminal) 20～32VDC |
|
-V2 |
power supply (rail)20～32VDC |
|
|
Service Code |
-QC9A |
Product Service Code |
|
Selection example Example 1: DSA-RS485-1P-V1-QC9A ...... (RS485 communication safety barrier, 1 2V power distribution, RS485 signal to RS485 signal, terminal power supply 20 ~ 32VDC) |
||
Technical data:
size:
|
Width |
14.5mm |
|
Height |
102.6mm |
|
Depth |
124mm |
|
Housing Material / Color |
PC(Polycarbonate)+PPT Material / Black Gray |
|
Protection level |
IP20 |
Environmental conditions:
|
Ambient temperature |
-20~＋60℃ |
|
Ambient temperature (storage or operation) |
-40~＋80℃ |
|
Ambient humidity (operation) |
5~95％RH (no condensation) |
Input (intrinsically safe):
|
Signal Type |
RS485 Digital Signal |
|
Distribution voltage |
9V distribution voltage, current ≤100mA; 12V distribution voltage, current ≤60mA |
Power supply:
|
Signal type |
RS485 digital signal; RS232 digital signal |
|
Signal level rule |
Standard RS485 differential level; standard RS232 logic level |
|
Signal transmission rate |
≤56kbps |
|
Transmission delay |
≤10uS |
Power supply:
|
Rated supply voltage |
24VDC |
|
Power supply voltage range |
20~32VDC |
|
Maximum current consumption |
＜130mA |
General parameters:
|
Electrical isolation |
Input-output-power supply: 2500V AC RMS / 1 minute |
|
Electromagnetic compatibility (EMC) |
in accordance with IEC 61326-1 (GB/T 18268), IEC 61326-3-1 |
|
LED status indication |
Power on, the product model on the panel is clearly visible through the LED backlight perspective, white. |
|
Applicable occasions |
Installed in a safe place, can be connected with intrinsically safe equipment in Zone 0, Zone 1, Zone 2; IIC, IIB, IIA; T4~T6 danger zone |
|
Field device suitable for connection |
RS485 communication interface |
|
Mounting method |
Horizontal or vertical mounting, can be mounted on standard 35mm DIN rail (or dedicated busbar backplane powered DIN rail) |
Wiring parameters:
|
Rigid conductor cross section (min/max) |
0.5mm²/2.5mm² |
|
Flexible conductor cross section (min/max) |
0.5mm²/2.5mm² |
|
Minimum Conductor Cross Section (AWG)) |
24 |
|
Maximum Conductor Cross Section (AWG) 14 |
14 |
|
Stripping length |
7mm |
|
Connection type |
M3 screw fastening connection |
|
Screw torque |
Up to0.6Nm |
Explosion-proof parameters:
|
Name |
With distribution, terminal 1-2 |
Terminal 3-4 |
|
Maximum output voltage (Uo) |
16VDC |
8VDC |
|
Maximum output current (Io) |
475mA |
90mA |
|
Maximum output power (Po) |
1.83W |
0.18W |
|
Maximum external inductance (Lo) |
0.123mH |
3mH |
|
Maximum external capacitance (Co) |
0.46μF |
5μF |
|
Maximum safety voltage (Um) |
250VDC/AC |
|
Certification/Standards:
|
CE certification |
in line with CE standards |
|
National Explosion-proof Electrical Product Quality Supervision and Inspection Center (CQST) certification |
[Ex ia Ga] IIC conforms to GB 3836.1, GB 3836.4, GB 3836.20 |
Product drawing / terminal wiring diagram:
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