Manufacturer datasheet photo · industrial 8-port desktop serial device server
ZJTS808
Industrial Serial Device Server · 8×RS-232/485 · 2×LAN
Industrial 8-Port Desktop Serial Device Server · 8 × RS-232/485 · 2 × 10/100Base-T(X) LAN · DC5V/AC220V
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◆8×RS-232/485 Serial
◆Dual 10/100 LAN
◆15KV ESD Protection
◆Modbus TCP/IP
◆-40~75°C Wide Temp
◆5-Year Warranty
Overview
The ZJTS808 is an industrial 8-port desktop serial device server that connects up to 8 RS-232/485 serial devices to an Ethernet network through 2 fixed 10/100Base-T(X) LAN ports. It runs a 32-bit 100MHz processor with 2MB memory, supports DHCP, Telnet, TCP, UDP, IP, ICMP, ARP and Modbus TCP/IP, offers WEB-browser remote configuration with a bilingual Chinese/English setup menu, and carries built-in 15KV ESD surge protection on every serial port. Powered by DC5V (5–24VDC via an optional 220V-to-5V adapter) or AC220V (85–264VAC/77–300VDC) with reverse-polarity and overload protection, it operates from -10 to +60°C (wide-temp version -40 to +75°C) in a compact 30×106×190mm IP40 metal enclosure for desktop or wall-mount installation.
Is This the Right Fit?
Six real deployment scenarios matched to this model's actual datasheet specifications.
Legacy Serial Device IP NetworkingUp to 8 RS-232/485 serial ports are freely combinable (S-232 all-RS232, S-485 all-RS485, or M 2-in-1 per port), turning eight legacy serial instruments into IP-reachable devices through the 2 × 10/100Base-T(X) Ethernet ports.
PLC & Automation Cell IntegrationModbus TCP/IP is supported alongside DHCP/Telnet/TCP/UDP/IP/ICMP/ARP, letting the 8 serial ports bridge multiple PLCs or automation controllers onto the plant Ethernet without rewiring existing RS-232/485 cabling.
Extended-Temperature Cabinet DeploymentAn optional wide-temperature variant extends the operating range from the standard -10~60°C to -40~75°C, for unheated cabinets exposed to cold winters or hot summers.
Standard Dual-LAN Port — No Selection NeededEvery ZJTS808 unit ships with 2 × 10/100Base-T(X) Ethernet ports built in as standard — unlike models where port count is an option, there is no single-LAN version to choose from.
Desktop High-Density Multi-Device Access8 RS-232/485 ports in a compact 30×106×190mm desktop metal enclosure let one unit aggregate more serial devices than the smaller desktop models in this series, without needing rack or DIN-rail installation.
Built-In 15KV ESD Surge Protection on Every PortAll 8 serial ports carry built-in 15KV ESD surge protection plus overall reverse-polarity and overload power protection, adding resilience against electrical transients along long industrial wiring runs.
Not a good fit if:
- Single power input only (DC5V or AC220V) — not a dual-redundant power design; add external backup power if input redundancy is required.
- IP40 metal enclosure only — not rated for direct outdoor rain/dust exposure without an additional cabinet.
- A serial-to-Ethernet device server, not a network switch — the 2 LAN ports connect the unit itself to the network and do not provide VLAN/RSTP or multi-device switching.
Key Features
- 2 × 10/100Base-T(X) adaptive Ethernet ports standard — fast networking for serial devices
- Up to 8 × RS-232/485 serial ports, flexibly combinable (RS-232-only, RS-485-only, or 2-in-1 combo)
- Built-in 15KV ESD surge protection on all serial ports
- WEB-browser remote configuration · bilingual Chinese/English setup menu
- DC5V (5–24VDC, optional 220V-to-5V adapter) or AC220V (85–264VAC/77–300VDC) power, reverse-polarity & overload protection
- Wide-temp -40~75°C optional · compact 30×106×190mm IP40 metal enclosure · desktop/wall-mount · 5-year warranty
Specifications
Performance
| CPU | 32-bit, 100MHz |
| Memory | 2MB |
| Ethernet Rate | 10/100Mbps adaptive, manual setting supported |
| Communication Mode | 10M half/full duplex, 100M half/full duplex |
| Port Protection | 15KV electromagnetic isolation |
Serial & Network Ports
| RJ45 Ports | 2 × 10/100Base-T(X) |
| Serial Ports | 8 × RS-232/485 |
| Port Connector | RS-232/485 terminal block |
| Signal (RS-232) | TxD, RxD, GND |
| Signal (RS-485, 2-wire) | Data+, Data-, GND |
| Data Bits | 5, 6, 7, 8 |
| Parity | None, Even, Odd, Space, Mark |
| Stop Bits | 1, 2 |
| Flow Control | RTS/CTS, XON/XOFF |
| Baud Rate | 300 bps – 230.4 Kbps |
| Protocols | DHCP, Telnet, TCP, UDP, IP, ICMP, ARP, Modbus TCP/IP |
| Virtual COM Driver | Windows NT/2000/XP/Vista/7/10/11 |
Power
| 5V Input | Optional 220V-to-5V adapter; supports 5–24VDC |
| 220V Input | 3-pin terminal; supports 85–264VAC/77–300VDC |
| Power Consumption | Max 4 W |
| Power Protection | Reverse-polarity & overload |
Environment
| Standard Temp | -10 ~ +60°C |
| Wide Temp | -40 ~ +75°C |
| Storage Temp | -40 ~ +85°C |
| Humidity | 5–95% non-condensing |
Physical
| Housing | IP40 metal enclosure |
| Mounting | Desktop / wall-mount |
| Dimensions | 30 (H) × 106 (D) × 190 (W) mm |
Certification
| EMC | CE, FCC |
| EMI | FCC Part 15, CISPR (EN55022) Class A |
| EMS | EN61000-4-2 (ESD) Level 3, EN61000-4-3 (RS) Level 3, EN61000-4-4 (EFT) Level 3, EN61000-4-5 (Surge) Level 3, EN61000-4-6 (CS) Level 3, EN61000-4-8 |
| Shock | IEC60068-2-27 |
| Free Fall | IEC60068-2-32 |
| Vibration | IEC60068-2-6 |
| Green | RoHS, WEEE |
Reliability
| MTBF | 320,000 hours |
| Warranty | 5 years |
Models & Ordering
| Model | Product Description | Price |
|---|---|---|
| ZJTS808-S-232 | 8-port RS-232 serial device server, 2 × 10/100M adaptive Ethernet, desktop/wall-mount, AC220V power, optional 220V-to-5V (5–24V) adapter. | |
| ZJTS808-S-485 | 8-port RS-485 serial device server, 2 × 10/100M adaptive Ethernet, desktop/wall-mount, AC220V power, optional 220V-to-5V (5–24V) adapter. | |
| ZJTS808-M | 8-port RS-232/485 (2-in-1) serial device server, 2 × 10/100M adaptive Ethernet, desktop/wall-mount, AC220V power, optional 220V-to-5V (5–24V) adapter. |
This page covers the ZJTS808 series: -S-232 = 8 × RS-232 ports only; -S-485 = 8 × RS-485 ports only; -M = 8 × RS-232/485 combo (2-in-1, port type selectable). All variants share 2 × 10/100M adaptive Ethernet ports, desktop/wall-mount installation, and AC220V standard power with an optional 220V-to-5V (5–24VDC) power adapter. The requested model is ZJTS808.
Dimensions
unit: mm
Your Brand. Our Factory.Neutral casing, ready for your logo · Custom port/power options · Small batches welcome.
Custom & OEM →8-Port Serial Device Server FAQ — ZJTS808
How many serial devices can the ZJTS808 handle at once?
Up to 8 RS-232/485 serial devices connect through terminal-block ports, and the unit joins the network over 2 fixed 10/100Base-T(X) LAN ports. It runs a 32-bit 100MHz processor with 2MB memory, forwarding serial data at rates from 300 bps to 230.4 Kbps per port.
Is the configuration interface easy for local technicians?
Yes — remote configuration runs in a WEB browser with a bilingual Chinese/English setup menu, so no vendor tool is needed. Protocol support covers DHCP, Telnet, TCP, UDP, IP, ICMP, ARP and Modbus TCP/IP, and the virtual COM driver works on Windows NT through Windows 11.
What are the power options for the ZJTS808?
Two: DC5V through an optional 220V-to-5V adapter accepting 5–24VDC, or AC220V on a 3-pin terminal with an 85–264VAC / 77–300VDC range. Maximum consumption is 4 W. Reverse-polarity and overload protection are built in, so wiring mistakes in the cabinet do not damage the unit.
Can it work in hot or freezing environments?
The standard version operates -10 to +60°C and the wide-temperature version -40 to +75°C, with storage tolerance of -40 to +85°C and 5–95% non-condensing humidity. Every serial port carries 15KV electromagnetic isolation, and EMC immunity reaches EN61000-4 series Level 3.
How big is it and how long should it last?
The IP40 metal enclosure measures 30×106×190 mm and sits on a desktop or mounts on a wall — 8 serial ports without taking rack space. Rated MTBF is 320,000 hours (over 36 years continuous), certified CE/FCC and RoHS/WEEE, and covered by a 5-year warranty.
Our own line — Zhongxin Shutong industrial switches1,500 m² clean rooms100% port-by-port tested-40…+75 °C rated, cycled to +85 °CEN 61000-4 Level 3 EMC immunitySerial-number traceability on every unitISO 9001 · 14001 · 27001 · CMMI L3See the factory →See all certifications →
Every order, any brand: there is no return policy — defective units are covered by free spare units agreed per order and written into the quotation. Warranty up to 5 years on the Zhongxin Shutong industrial line, manufacturer warranty on other brands. Terms, warranty & RMA
