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DSLAM Switch 48 porte ADSL (4x connettore Telco 50), POTS splitter integrato, 2 porte Dual Personality Gigabit, rack 19"

  • The fastest speed with the most advanced and flexible DSL transport available, adjustable speeds for multiple service offerings down/up stream Up to 24/1.2 Mbps
  • Application flexibility, with asymmetric data transport over a single copper pair (software configurable)
  • Compliant with ITU, ANSI and ETSI standards
  • POTS/ISDN in overlay mode
  • Deployment from CO, cabinet or basement, multi-tenant units/multi-dwelling units
Better utilization of bandwidth
The IES-1248 is an IP-based DSLAM that terminates all the ATM circuits and converts traffic directly to deliver the most popular broadband IP services. It also provides a distinct advantage over typical ATM-based DSL access system due to the fact that IP is the natural approach for data transmission. It offers better bandwidth utilization, ease of use, as well as the low-cost advantage. With the highly compact and temperature-hardened design, simple installation and easy adaptation to local POTS/ISDN splitter requirements, the IES-1248 can be deployed in indoor and outdoor enclosures.

A robust, capable ADSL2+ solution
With this standalone ADSL2+ IP DSLAM, service providers can offer residential and business users access to high-bandwidth services on demand; such as streaming video, online gaming, multimedia applications and multiple video channels on a single network connection. The IES-1248 also offers medium/small businesses and home offices IP connectivity, VPNs, VLANs, high-quality video conferencing, long-reach Ethernet and legacy service interconnection, as well as asymmetric connectivity as fast as 24Mbps. The IES-1248 DSL solution for POTS/ISDN is a sophisticated ADSL2+ device wielding full compliance to existing standards, the latest DSL technology, compactness, low power consumption, integration with existing platforms and network managemeability. The combination of a superior line code, modern signal processing techniques and state-of-the-art ASIC design add up to a compact, energy-saving ADSL2+ modem with excellent performance, transparent backward ADSL/ADSL2 compatibility, robust interference resistance and flexible configurability.

ADSL2/ADSL2+ Interface

  • Support G.992.3 and G. 992.5 ATM Transmission Convergence (ATM-TC) function
  • Support G.992.3 and G.992.5 Spectral Mask
  • Support EOC and Overhead Channel Access defined in ITU-T Rec. G.992.3 and ITU-T Rec. G.997.1
  • Support the latency path function specified in ITU-T Rec. G.992.3 and G.992.5
  • Support loop diagnostic function specified in ITU-T Rec. G.992.3 and G.992.5
  • Support the power management capability specified in ITU-T Rec. G.992.3 and G.992.5
  • Support the capability of the Seamless Rate Adaptation (SRA) on-line configuration specified in ITU-T Rec. G.992.3 and G.992.5

Network Interface

  • IEEE 802.3u 100BASE-TX
  • IEEE 802.3ab 1000BASE-T
  • IEEE 802.3z 1000BASE-LX/1000BASE-SX
  • SFP mini GBIC

ATM Functionality

  • Support Point-to-Point Virtual Circuit Connection (VCC) in the Network
  • Provide the Peak Cell Rate (PCR) configurable parameter for UBR services specified in ATM Forum Traffic Management 4.0
  • Provide the Peak Cell Rate configurable parameter for CBR services specified in ATM Forum Traffic Management 4.0
  • Provide the Peak Cell Rate (PCR) and Sustainable Cell Rate (SCR) configurable parameters for rt-VBR and nrt-VBR services specified in ATM Forum Traffic Management 4.0
  • The over-subscription of bandwidth is permitted, i.e., total DSL bandwidth can be larger than bandwidth of DSLAM network interface for UBR service
  • Support the downstream traffic shaping function for each ATM PVC connection
  • Support the Fault Management (FM) functions of the ATM layer F5 OAM cells for End-to-End Loopback defined in ITU-T Rec. I.610
  • Support 64k PVC

IP Functionality

  • Support ICMP (Internet Control Message Protocol) function, and respond the ICMP request message sent from NMS or other system

Subscriber Management

  • Support the Ethernet MAC filtering function
  • Support 64k MAC addresses
  • Support the DHCP relay agent option 82 function
  • Support 802.1x
  • Support port isolation function
  • Support RFC2684 bridged mode payload encapsulation method
  • Support the IPSec/L2TP/PPTP VPN pass-through function
  • Support RFC2516 PPPoE packet forwarding function

VLAN & VLAN Bridge Functions

  • Provide 1024 configurable VLANs
  • The VLAN tagging complies with IEEE 802.1Q
  • Support VLAN bridge function of mapping of multiple PVCs to one VLAN ID
  • Support the IEEE 802.1Q VLAN tagging
  • Support GVRP function


  • Support 802.1w RSTP


  • Support configurable IEEE 802.1p priority queue function and support 4 levels
  • Support configurable mapping function between ATM PVC and 802.1p priority queue

Multicast capability for IP network interface

  • Support RFC2684 bridged mode multicast service
  • Support Internet Group Management Protocol (IGMP) version 2 specified in RFC2236
  • Support IGMP snooping function
  • Support 256 multicast groups
  • Support 144 copies for each multicast group


  • Local management through a craft terminal
  • Support the In-band IP interface for managing the Network
  • Support SNMP (Simple Network Management Protocol) v1.0  & v2c (RFC1157)
  • The management activities can be performed by SNMP operations
  • Support SNMP MIB(s)
  • Support standard SNMP traps so that these traps can be reported to other NMSs
  • Centralized Management Software – EMS supporting

Hardware Configuration

  • Two TELCO-50 connectors for 48-port ADSL/ADSL2/ADSL2+
  • Two TELCO-50 connectors for 48-port splitter card
  • One mini RJ11 console port for local management
  • Two 100Base-TX/1000Base-T or two mini GBIC for uplink/subtending
  • One DB9 for 3 in and 1 out alarm contact
  • Hot-swappable fan module
  • DC Input connector

Power Requirements

  • Voltage: -48 VDC (-36 ~ -72VDC)
  • Power: max. 90Watts

Physical Specifications

  • 19” and 23” Rack-mountable
  • Force cooling by FAN
  • Temperature hardening
  • Built-in splitter
  • Dimension: 442.7 (W)  x 250 (D) x 66 (H)mm
  • Weight: 7.2 Kg

Environmental Specifications

  • Operating Temperature: -40°C to 65°C
  • Storage Temperature: -40°C to 85°C
  • Operating Humidity: 10% to 95% (non-condensing)
  • Storage Humidity: 5% to 95% (non-condensing)


  • EMC/ESD: FCC part 15 Class A; EN 55022, EN 55024 Class A; ETS 300 386
  • Safety: ITU-T K.20, Appendix C; CSA 60950; EN 60950; IEC 60950 ; UL 60950
  • Reliability : ETS 300 019