RicherLink FM8841A
FM8841A is a gateway launched by our company for the needs of small domain ONT extension application. The functions and performances meet ITU G.984.X international standards. With the features of high reliability, good QoS, manageability, flexible networking and easy capacity expansion, it can fully satisfy the user’s need for high – speed broadband.
The WAN port is a GE interface, which can be connected to the ONT LAN port or switch.
The downlink optical port is a GPON interface that connects to the GPON slave gateway, supporting up to 16 slave gateways, and it is suitable for home users.
It has advanced Wi-Fi6 function, supporting WIFI6 3000Mbps with IEEE 802.11a/b/g/n/ac/ax.
1. Hardware specification
1.1 Hardware parameters
CPU |
Airoha AN7581CT,Built in 4-core Arm A53 and integrated with 4 NP processors |
Wi-Fi Base-band |
MT7916AN |
Wi-Fi RF |
MT7976DN |
RAM |
512MB memory ( default ) |
ROM |
256MB Flash ( default ) |
1.2 Interface
Interface |
Description |
ON/OFF |
Power ON/OFF |
DC 12V |
DC adaptor interface / DC12V |
RST |
Press reset key and keep 5 seconds to make the device restart and recover from the factory default Settings. |
MESH |
press( ≥ 5s): enable the WPS function press ( ≥ 1s): enable the easy mesh function |
WAN |
RJ45 port,10/100/1000Mbps |
Eth Port |
3pcs RJ-45 LAN port |
DL-PON |
SC/UPC or SC/APC type optical interface,GPON Optical Interface, downlink to ONU, Plug and Play |
USB |
One USB 2.0 |
1.3 Indicators of device
Indicators |
Status |
Description |
POWER |
On |
power supply normally |
Flash |
Device is booting up |
Off |
ONU no power supply |
STATUS |
Off |
Device is power off |
On |
Device is running normally |
Flash |
System is booting up, or system is upgrading |
MESH |
Off |
Mesh function is disabled |
On |
Mesh networking is successful |
Flash |
Mesh networking is in progress. |
INTERNET |
Off |
Uplink internet but no data |
On |
Uplink internet normal |
LAN |
On |
Linked, but no data transmitting |
Flash |
Linked, data is transmitting |
Off |
no power supply or disconnected |
WAN |
On |
Linked, but no data transmitting |
Flash |
Linked, data is transmitting |
Off |
no power supply or disconnected |
WLAN |
On |
Wi-Fi off |
Flash |
Wi-Fi on, but no data transmitting |
Off |
Wi-Fi on and with data transmission |
DL-PON |
On |
Downlink ONU is active |
Flash |
Downlink ONU is linking |
Off |
No downlink ONU is connected |
WPS |
Flash |
Enables the WPS function, the WPS led flashes within 2 minutes |
Off |
WPS function is disabled |
USB |
On |
USB storage is connected |
Off |
USB storage is disconnected |
2. Software Specification
Network Services |
Ethernet Uplink Easy mesh Networking |
Layer 3 Features |
ipv4,ipv6,ipv4/ipv6 Dual Stack Port Mapping ALG, UPnP, DDNS, DMZ NAT/NAPT Static Route/Default Route Multi-Services Integration |
multicast |
IPV4/IPV6 multicast |
QOS |
QOS speed limit |
Security |
Firewall Anti-DOS attack MAC/IP/URL Address Filtering |
OAM |
OAM/OMCI/Web UI/TR069/AVASA ( optional ) |
Home/Enterprise Network |
Support for all-optical home/enterprise Wi-Fi coverage. No electromagnetic interference and low latency. Visual manage the network topology. Wi-Fi Channel Optimization for network. Wi-Fi Seamless Roaming ( 802.11k/802.11v ) * |
3. Technical specifications
3.1 Physical structure, Environment and Electrical parameter
Parameter |
Nominal Value |
Dimension |
217mm×141mm×44mm(WDH) |
Net weight |
<0.76kg |
Typical power consumption |
<24W |
Power supply |
12V DC(external AC/DC adapter) |
Installation style |
Support Desk, wall mount or put inside of information box. |
Operating Temperature |
0℃~45℃ |
Operating Humidity |
10%RH~95%RH (non-condensing) |
3.2 Interface parameter
3.2.1 Uplink interface parameter
Quantity |
Type |
Remark |
1 |
RJ45 10/100/1000 Base-T Ethernet |
Self negotiation IEEE802.3ab Standard, Support direct network cable connection and automatic verification of connection network cable |
3.2.2 GPON Downlink Interface Specification
Parameter |
Nominal Value |
Connector style |
SC/UPC or SC/APC |
Splitting ratio |
1:16 |
PON quantity |
1 |
Fiber style |
Single Mode Fiber |
Wavelength |
TX: 1490±10nm RX: 1310±20nm |
PON interface standard |
ITU-TG G.984.x; |
Tx Optical Power |
-4dBm~0dBm(because it is support 1:16 Splitting ratio only) |
Rx receiving sensitivity |
<-27dBm(because it is support 1:16 Splitting ratio only) |
PON interface transmitting rate |
2.488Gbps |
PON interface receiving rate |
1.244Gbps |
3.2.3 User Interface
Quantity |
Type |
Remark |
1 |
RJ45 100/1000/2.5G BASE-T Ethernet Self negotiation |
IEEE802.3bz Standard, Support direct network cable connection and automatic verification of connection network cable |
3 |
RJ45 10/100/1000 Base-T Ethernet Self negotiation |
IEEE802.3ab Standard, Support direct network cable connection and automatic verification of connection network cable |
1 |
USB2.0 |
Storage/USB Power supply |
3.3 Wi-Fi specification
Wireless Standard |
5G 802.11 ax/a/n and 2.4G 802.11 b/g/n/ax |
Frequency |
2.4G: 2.4~2.4835GHz 5G: 5.15~5.825GHz |
Transmission speed |
2.4G: IEEE 802.11ax : 2×2, Max 574Mbps 5G: IEEE 802.11ax : 3×3, Max 2402Mbps(Support 160MHz bandwidth) |
Parameters Channels |
2.4GHz: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 5GHz: 36, 40, 44, 48, 52, 56, 60, 64, 149, 153, 157, 161, 165 |
Data Modulation |
11b: DSSS: DBPSK(1Mbps), DQPSK(2Mbps), CCK(5.5/11Mbps) 11a/g: Rate Set: MCSO-MCS9 11ax: MIMO-OFDMA: BPSK, QPSK, 16QAM, 64QAM, 256QAM, 1024QAM. Rate Set: MCS0-MCS11 |
EIRP |
2.4GHz:20dBm, 5GHz:23dBm |
Antenna |
2External omnidirectional dual-band antenna of 5dBi ( 2.4G and 5G ) ,1Internal omnidirectional antenna for 5G |

Ordering Information
Model |
Product Descriptions |
FM8841A |
FTTR Master,1*GE WAN,1*GPON OLT+1*2.5GE+2*GE,WIFI6,AX3000 |