Z920K - RS232 - C

| RS232 To Wireless Mesh Converter |

Standard : Compatible with IEEE 802.15.4g

Protocol : Modbus/RTU, ASCII code support

P-P Transmit distance : 500m (at a visible direct line)

Topology MESH : Max 16 hops

Network Accommodation : Max 100 nodes

Radio frequency band : 920MHz

Max Receiver Sensitivity : -103 dBm

Maximum data rate : 100 kbps

Transmit output power : 16mW/1mW/20mW

Encryption : 128bits AES (MAC)

Telecom certification : TELEC/FCC/NCC/NBTC

EMC : EN 55032/EN55035

Protection : Contact 4KV/Air 8KV

Outdoor P-to-P range 500m

(at a visible direct line)

Network Capacity

Max 100 nodes

Max Receiver Sensitivity

-103 dBm

Console APP / Windows Utility

BLE / NFC / micro USB

Topology Mesh

(Max 16 hops)

Radio frequency

band 920MHz


easily wireless.

ZOTECH Z920K series are able to easily wireless those messy RS485 / RS232C wires for Industrial IoT, smart building or other IoT applications.

save cost and time.

Z920K wireless is designed with an OKI MH920 module to keep a good communiation quality. The main advantage of Z920K application is that the
original control/data collect systems and sensing equipment can be kept to save cost and time for a mesh network establish.


what it support?

Z920K-P/Z920K-C support Modbus RTU/ASCII , and feature a low power consumption, long-range and robust wireless mesh network.

perfect solution.

When the communication network needs to cross floors and areas and minimun equipment changes as well as the installation should be simple and fast, Z920K wireless mesh converter will be a perfect solution for a choice.


better capabilities.

To compare with the other wireless WiFi, ZigBee…, Z920K 920Mhz radio frequency has better capabilities of wall penetration and anti environmental interfiences.

Application Scenario


CPUARM7-based SoC
Reset / Load Factory default buttonYes,1 Botton
System Memory2Mbytes SDRAM
FLASH Memory1 Mbytes
Parallel Port1 DB-36 pin male Centronics port
LAN Port1 10/100Mbps auto-sensing, RJ-45 (UTP) connector
Status/Power LED indicatorOrange
On : Power on
Off : Power off
Power / Status1 Yellow
LAN 10/100M2 Green / Yellow
10M : Yellow
100M : Green
Power supply5VDC, 1A (Switching)
Weight50.6g (Device Only)
TemperatureOperating : 0 ~ 50 ℃, Storage : -5 ~ 65 ℃
HumidityOperating : 0 ~ 70%, Storage : 0 ~ 80%
Network Operating System SupportWindows 9X/Me/NT/2000, XP-32/64, Vista-32/64
Windows 7-32/64, Windows 8/10
Mac OS(8.1 or higher)
Printing Protocol SupportTCP/IP, IPX, NetBEUI, AppleTalk, IPP, LPR, RAW TCP, SMB over TCP/IP
Internet Printing Protocol (IPP) SupportYes
Rendezvous(Bonjour) SupportYes
DHCP client SupportYes
Management1. Web Interface
2. Windows-Based setup program
Firmware Upgradeable1. Web interface
2. Windows-based Setup Program
Windows Print Monitor TechnologyYes
SNMP & HP Web JetAdmin SupportYes
Email Alert SupportYes
Job LogYes
Self Test PageYes
Power On Load DefaultYes