What’s the Difference Between MA5621 and MA5621A

Difference between the Application        

The MA5621 is used for remote collection and transmission of power system information. In the up-stream direction, an MA5621 is connected to two Optical Line Terminals (OLTs) through two Passive Optical Network (PON) ports for network protection. In thedown-stream direction, it is connected to the Remote Terminal Unit (RTU), Feeder Terminal Unit (FTU), and Transformer Terminal Unit (TTU) through the FE and serial ports.

The MA5621A is used for the centralized collection of power system electrical meter data. In the upstream direction, the MA5621A is connected to the OLT through the PON port, while in the downstream direction, it is connected to the concentrator or intelligent electrical meter through the FE or RS485 serial port.

Difference between the Specifications

Product	MA5621	MA5621A
Dimensions (W x D x H)	235mm x 180mm x 44.4mm	250mm x 180mm x 43.6mm
Network-Side Port	Available configuration modes: • 2 x GPON • 2 x GE (optical) • 1 x GE (optical) + 1 x GPON	Available configuration mode: • 1 x GPON
User-Side Port	4 x GE/FE + 4 x RS485/RS232	4 x FE + 2 x RS485
Working Temperature	-40°C to 85°C	-40°C to 65°C
Ambient Humidity	5% Relative Humidity (RH) to 95% RH, non-condensing	5% RH to 95% RH, non-condensing
Heat Dissipation Mode	Heat is dissipated naturally without a fan.	Heat is dissipated naturally without a fan.
Power Supply	AC: 220 V/110 V auto-negotiation DC: 12 V/24 V/48 V auto-negotiation	AC: 220 V/110 V auto-negotiation
Weight	1.5 kg	1.24 kg

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Huawei Router AR2220 VS AR2240

What’s the difference between Huawei router AR2220 and AR2240? You can know clearly from the below table 1 and table 2.

Table 1 The difference between Huawei router AR2220 and AR2240

Features	AR2220	AR2240
WAN speed with services	400 Mbps	600 Mbps (With SRU40) ,1800 Mbps (With SRU80), 4.5Gbps(With SRU200)
Device switching capacity	32Gbps	80Gbps
Fixed Ethernet ports	WAN ports：3xGE（1xCombo）	WAN ports：3 x GE(2 x Combo) /4x GE Combo+ 2 x 10GE
Rack Height	1RU	2RU
XSIC Slots(default/max)	0/2	42039
DSP Slots	1	0/3
Memory(default/max)	2 GB	2 GB/8 GB
Redundant Power Supply	-	internal dual power
Dimensions（H x W x D）,mm	44.5 x 442 x 420	88.1 x 442 x 470

Table 2 The common points between Huawei router AR2220 and AR2240

Features	AR2220 and AR2240
Typical deployment	Medium-sized enterprise branch-Rack-mountable-modular
SIC Slots	4
USB 2.0 ports	2
Mini-USB ports	1
Flash(default/max)	2 GB/4 GB
PoE	-
IPv4 Routing protocols	RIP，OSPF，IS-IS，BGP
IPv6 Routing protocols	RIPng，OSPFv3，IS-ISv6，BGP4+
Web GUI	Yes
Firewall	Yes
Hardware encryption	Yes
Intrusion Prevention System(IPS)	Yes
URL Filtering	Yes
VPN（IPSec VPN，L2TP VPN，DSVPN，Smart VPN）	Yes
Session Initiation Protocol (SIP)	Yes
Conference call	Yes
Branch Exchange for Survivable Telephony(BEST)	Yes
Session border controller(SBC)	Yes
Access Controller	Yes
Fanless	No

The AR2200 routers are next-generation enterprise-class routers based on the Huawei proprietary Versatile Routing Platform (VRP). These modular-chassis routers integrate routing, switching, 3G service, voice, and security functions. Users customize the routers by selecting the interface cards that meet their requirements. The AR2200 use the embedded hardware encryption technique and support a voice-optimized Digital Signal Processor (DSP). They provide firewall security, call processing, voice mail, and other application programs. The AR2200 routers support wired and wireless access modes, including E1/T1, xDSL, xPON, CPOS and 3G. Building on Huawei’s leading data communication and networking technologies, they provide industry-leading system performance and scalability to meet current and future business needs.

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