ZyXEL IES-1248G-51A

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Numer katalogowy: 91-004-629001B

ADSL2/ADSL2+ Interface

Support G.992.1 Annex A

Support G.992.3 Annex A, Annex L, Annex M

Support G.992.5 Annex A, Annex M

Support G.994.1 G.hs

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


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

8 PVC per port

Support upstream rate limiting per PVC

Support G.998.1 ADSL 2-port bonding

IP Functionality

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

IP bridging

Subscriber Management

Support the Ethernet MAC filtering function

Support 14k 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

Support configurable MTU (1526~1600 bytes)

Support TR-101 compliant PPPoE intermediate agent

Support DHCP option 82 feature per port or per VLAN

Support DHCP snooping and static IP address feature

Support TR-101 compliant DHCP option 82 packet format

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 per-VLAN isolation

Support OUI filter 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 512 multicast groups

Support 50 members for each multicast group

Support IGMP v3 packet recognition

Support multicast group filter function


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 (17.3” x 9.88” x 2.6”)

Weight: 7.2 Kg (15.87lb)

Environmental Specifications

Operating Temperature: -40°C to 65°C (-40°F to 149°F)

Storage Temperature: -40°C to 85°C (-40°F to 185°F)

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

NEBS Complian



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