IP DSLAM IES-1248-51V 48-port Remote MSAN for ADSL and VoIP services

 Without VATWith VAT
Base Price:€4.099,14€4.959,96
Recupel:+ €0,30+ €0,36
Part Number: 91-004-725001B
Language: UK
Minimum Order Quantity: 1

Product Details


Reaching subscribers with high-bandwidth triple-play services
- Complete ADSL2/2+ standard compliance:
- ADSL2+ port bonding
- SIP v2 and H.248 v2 media gateway signaling
- Voice Codec of G.711 a/ law, G.726, G.729 a/b and G.723.1
- Fax/Modem signal pass through
- Supplementary service support
- Local Dial available
- Loop Diagnostic
- SELT (Single End Loop Test)
- DELT (Dual End Loop Test)
- MLT (Metallic Loop Test)
- Test Out/Test in terminals

Temperature Harden and Friendly Remote-Installation Design
The ZyXEL IES-1248-51V can operate in the environment with temperature from -40C to 65C, which meets various Fiber-to-the-Node and Fiber-to-the-Curb environment conditions worldwide. A side-slip plug-in and pull-out mesh filter, which is cleanable and reusable, is equipped to make it dust-proof and suitable for open-air installations.

Moreover, the rotational speed of the fan module is automatically adjusted according to the system temperature. The feature not only extends the lifespan of the module, but also has lower audible noise, which is important if IES-1248-51V is installed in a residential neighborhood. The fan module is swappable in order to reduce the maintenance cost in the field.

Complete ADSL2+ Services
The IES-1248-51V provides state-of-the-art ADSL2+ connectivity to subscribers. The latest technologies like various line coding, power spectral mask fitting, dual latency path selection, loop diagnostic and power management capabilities, Seamless Rate Adaptation (SRA) and Impulse Noise Protection (INP) are all supported. Up to 24Mbps (downstream) and 2.3Mbps (upstream) per port facilitates high-bandwidth services such as streaming video, online gaming and IP TV. ADSL2+ port bonding is also provided for subscribers who need even more bandwidth or located with loop length longer than 5000 ft.

VoIP Media Gateway Embedded
The IES-1248-51V has a built-in POTS splitter and can act as the media gateway of a packet voice network. Through the communication with the softswitch or media gateway controller, IES-1248-51V digitalizes and encapsulates the POTS voice into VoIP packets and delivers them to the IP network with higher priority in SIP or H.248 signal protocols. Telco operators can provide voice over broadband (VoBB) service without changing existing customer premises network and keep the OAM&P as usual.

Sophisticated Features for Triple-Play Services
The IES-1248-51V comes with complete ATM and Ethernet QoS, as well as various IP QoS features (Packet classification/Rate Limitation/Queue Scheduling). The seamless QoS-mapping not only allows consistent and appropriate traffic treatment of packets, but also enables fulfillment of triple-play services.

The number of the supported multicast groups is 512, while each group can have 50 members. At least 30 multicast IGMP join/leave requests can be processed in one second and the maximum channel processing time is less than 250 ms. For security, anti MAC address spoofing, broadcast storm prevention, MAC count limiting and packet filtering features are provided. With these features provided, Telco operators can easily offer Triple-play services like high-speed Internet access, VoIP, Near VOD, Broadcast TV and TV on Demand.


Ethernet LANYes
Ethernet LAN data rates10, 100, 1000 Mbit/s
Ethernet LAN (RJ-45) ports2
RJ-11 ports quantity1
DC-in jackYes
DSL connection typeADSL
DSL specificationG.992.1 Annex A, G.992.3 Annex A, Annex L, Annex M, G.992.5 Annex A, Annex M, G.994.1 G.hs, G.992.3, G.992.5, G.997.1, G.992.3/G.992.5
Networking standardsIEEE 802.3ab, IEEE 802.3u
MAC address table14000 entries
Routing protocolsIP
Management protocolsSNMP
VoIP protocolsSIP v2, H.248
Web-based managementYes
Quality of Service (QoS) supportYes
MAC address filteringYes
Firewall securityIPSec, L2TP, PPTP
FilteringIP, DHCP, IGMP, NetBIOS
Colour of productBlue
Power consumption (typical)170W
Power over Ethernet (PoE) supportYes
Weight8.2 kg
Operating temperature (T-T)-40 - 65 C
Storage temperature (T-T)-40 - 70 C
Operating relative humidity (H-H)10 - 95%
Storage relative humidity (H-H)5 - 95%
CertificationFCC, EN, ETS
Interface2x TELCO-50
Power requirements100-240V
Dimensions (WxDxH)439.8 x 251 x 66 mm
Networking featuresGigabit Ethernet
Connectivity technologyWired
Connectivity LEDsYes