Modern trade requires high mobility, and fiscal registers no longer need to be tied to a specific workstation by wire. Mercury 115F — This compact device fits perfectly into mobile retail or courier delivery environments. However, to take full advantage of wireless data transfer, a properly configured network connection is necessary. Users often encounter difficulties when trying to connect the cash register to a router or internet point.
Connecting the cash register to a Wi-Fi network not only frees up working ports, but also significantly simplifies the process firmware updates and uploading reports to cloud services. Unlike a wired connection, a wireless interface requires careful configuration of security and addressing parameters. In this article, we'll cover all configuration steps, common errors, and troubleshooting steps in detail. You'll learn how to transform your Mercury 115F into a fully autonomous business tool.
Before you begin, make sure you have access to the device's administrative panel. This could be a laptop with a browser or specialized software from the manufacturer. The wireless module in the 115F model operates in the 2.4 GHz range, which is the standard for most home and office routers. Don't try to connect to 5 GHz networks, as the device simply won't detect them. Preparing the right environment is half the battle.
Technical requirements and equipment preparation
Before proceeding with software settings, you need to make sure that the equipment is physically ready. Cash register The device must be in good working order, and its wireless module must be activated at the factory settings. Some equipment batches may contain different versions of Wi-Fi adapters, so it's important to check the specifications of your specific device in advance. Information about supported communication standards is usually contained in the device's data sheet or on a sticker on the device's body.
You'll need a stable wireless signal source. This could be a stationary router in your office or modem mode On a smartphone, if trading is conducted in the field. It's important to understand that the cash register itself doesn't create the network, but rather acts as a client. Therefore, the signal quality at the point of installation critically impacts the speed of receipt fiscalization. A weak signal will result in long waits for a response from the fiscal data operator (OFD) server.
Also, prepare a device for setup. This could be a Windows computer or even a smartphone if you're using the mobile configuration app. Make sure VPN services are disabled on the setup device, as they could block access to the cash register's local IP address. Mercury 115F has its own default IP address that you will need to access.
⚠️ Attention: If you're using your smartphone as a hotspot, make sure it doesn't have a limit on the number of devices you can connect to or a port blocking feature, which is common with some mobile phone plans.
To successfully synchronize, you need to know the password for your Wi-Fi network. Encryption protocol The protocol must be compatible with the cash register; most often, this is WPA2-PSK. Older encryption methods may not be supported, and new enterprise methods with login and password authentication (Enterprise) require advanced configuration, which is not available in all software versions.
Connecting to the cash register via the web interface
The most universal setup method is to use the built-in web interface. First, connect your computer or smartphone to the cash register. This can be done via a local network if the cash register is already connected via a cable, or directly by connecting the PC and the cash register with a network cable. After physically connecting, open any browser and enter the device's IP address in the address bar.
By default IP address The Mercury cash register's address is often set to 192.168.1.1 or 192.168.0.1, but this may have been changed previously. If you don't know the current address, you can use the "Mercury Test" utility or look at the network settings report printed on the receipt. In the web interface's authorization window, you'll be asked to enter your username and password. The default credentials are usually specified in the documentation; they are often admin/admin or root/root.
After successfully logging in, you'll see the main control menu. You're interested in the section responsible for network interfaces. Navigate the menu using standard browser tools. Here you can see the current connection status, the device's MAC address, and available network interfaces. Web configurator Provides full access to all network parameters, including DNS and gateway.
☑️ Check before logging into the web interface
The interface may seem cluttered, but for our purposes, we only need the Wi-Fi tab. Don't change TCP/IP settings unless you're sure of your local network structure. Incorrect gateway A different network address or subnet mask will result in loss of connection to the cash register, requiring a factory reset. Please be careful when entering data.
Searching and selecting a wireless network
In the Wi-Fi settings menu, the first step is to activate the wireless module. Find the "Enable Wi-Fi" switch or similar and set it to "Yes." The cash register will then begin scanning the surrounding airwaves. A list of available networks will appear in the table below. If your network isn't visible, it may be hidden (SSID Hidden) and will need to be added manually.
Select the desired network name (SSID) from the list. Note the signal strength displayed next to the name. Signal level Below 50% may result in unstable operation. If the cash register is located far from the router, consider installing a repeater or moving the access point closer to the cashier's workstation.
When choosing a network, consider the security type. As mentioned earlier, WPA2-PSK is the most compatible option. If your network uses more complex corporate protocols, consider
What to do if the network is not found?
If your network isn't listed, check to see if the SSID is hidden in your router settings. The register may also not be able to see networks in the 5 GHz band. Try temporarily enabling a guest network in the 2.4 GHz band on your router with a simple name without special characters.
Enter your network password in the appropriate field. Be careful with case sensitivity, as the system is case-sensitive. After entering the password, click "Save" or "Connect." The connection process may take 5 to 30 seconds. During this time, the cash register exchanges encryption keys with the router.
Configuring TCP/IP and DNS settings
After successfully pairing with the router, you need to configure the settings for obtaining an IP address. In most cases, for a cash register Mercury 115F The best option is to automatically obtain an address via DHCP. This will save you from manually entering numbers and prevent address conflicts on the network. However, some corporate networks require a static IP.
If your network requires static configuration, you will need to enter the IP address, subnet mask, gateway address, and DNS servers. You should request this information from your system administrator. Incorrect DNS server This will prevent the cash register from accessing the OFD servers, even if there is a connection to the router. For home networks, you can use public DNS, such as Google's (8.8.8.8).
Below is a table with example settings for different connection types:
| Parameter | DHCP Mode (Automatic) | Static IP (Example) | Description |
|---|---|---|---|
| IP Address | Automatically | 192.168.1.55 | Unique address of the cash register on the network |
| Mask | Automatically | 255.255.255.0 | Determines the size of the network |
| Gateway | Automatically | 192.168.1.1 | Router address for Internet access |
| DNS | Automatically | 8.8.8.8 | Name resolution server |
After applying the settings, be sure to test the connection. The web interface often has a "Ping" function. Try pinging your router's address or an external resource, such as 8.8.8.8. If you receive a response, the physical and logical connection is established correctly. Test package must return without losses.
Configuration via the Mercury Test utility
For users who prefer to work with desktop software, the manufacturer offers a utility Mercury TestThis powerful tool allows you to configure your cash register even without access to the web interface. The program connects to the cash register via USB or a virtual COM port. Once connected, select "Network Setup" or "Wi-Fi Configuration" from the menu.
The program interface works similarly: you select a network from a list or enter the data manually. The program's advantage is that it can read current settings and save them to a configuration file. This is convenient for mass deployment of identical settings across multiple points of sale. Simply upload the saved file to other cash registers.
The utility also allows you to update firmware Devices can be connected via Wi-Fi if the connection is already established. This eliminates the need to carry the cash register to the computer with a USB cable for each update. However, for initial Wi-Fi setup, it's still more convenient to use the web interface or the initial cable connection.
⚠️ Attention: When configuring the program, make sure the correct COM port is selected. If the port is occupied by another application (for example, 1C or a cash register driver), the program will return a connection error. Close other programs before beginning the configuration.
The program also allows you to check the firmware version of your wireless module. If the version is too old, Wi-Fi functionality may become unstable. In this case, the utility will prompt you to update the module. Follow the on-screen instructions and do not interrupt the device's power supply.
Using your smartphone as a hotspot
A special connection scenario is using an Android or iOS smartphone as a router. This is especially useful for couriers or mobile salespeople. Enable the "Wi-Fi Hotspot" feature on your phone. Set the network name and password. Important: Some phones may disable the hotspot to save power if few devices are connected.
Configure the cash register to connect to your phone's network as described in the previous sections. Mobile Internet It usually has a dynamic IP and NAT, which shouldn't cause problems for the cash register, as it initiates the outgoing connection to the fiscal data operator (FDO). The main thing is that the phone has a good cellular signal.
It's worth considering traffic consumption. Although receipts are small, constant ping and service packets can consume megabytes. When using mobile internet, it's critical to monitor your SIM card balance to avoid being left without service during peak trading hours. Also keep in mind that when you reboot your phone, the access point's IP address may change, and you will have to reconfigure the cash register or wait for it to reconnect on its own.
Diagnostics and solution of typical problems
Even with proper setup, difficulties can still arise. If the cash register won't connect, first check the password. The second most common cause is incompatibility with security standards. Try temporarily simplifying your router settings by enabling compatibility mode. The problem could also be in MAC filtering on the router, if it is enabled.
If you have a connection but your receipts aren't being processed, check your time settings. The cash register should be set to the correct time and date. If the time is off, the OFD security certificates won't be verified, and the connection will be lost. Synchronize your time online or manually.
The table below lists error codes that may occur when working with the network:
| Error code | Description | Solution |
|---|---|---|
| 50 | No connection with the OFD | Check your internet and time settings |
| 33 | Network error | Check your cable or Wi-Fi settings |
| 128 | Incorrect Wi-Fi password | Enter the correct security key |
If all else fails, perform a full reset of the cash register's network settings. This will return the network settings to factory defaults but will not affect the cash register's fiscal data or settings. After the reset, repeat the setup procedure again, carefully checking each step.
Is it possible to connect the cash register to Wi-Fi without a computer?
Yes, if your cash register is equipped with a display and keyboard, you can enter basic network settings directly from the device's keyboard via the "Settings" -> "Network" menu. However, this is less convenient than using the web interface.
Why does the cash register disconnect from Wi-Fi on its own?
Most often, this is due to the router's power-saving settings or the POS module itself. It could also be caused by a weak signal or the router changing the broadcast channel to an overloaded one.
Does Wi-Fi affect receipt printing speed?
No, print speed depends on the printer mechanism. However, the latency of data transmission to the cash register from the accounting system via Wi-Fi may be slightly higher than via a cable, but this is not a significant issue for fiscal purposes.