The IES-1248-51V provides state-of-the-art ADSL2+ connectivity to subscribers with up to 24Mbps (downstream) and 2.3Mbps (upstream) per port facilitates high-bandwidth services such as streaming video, online gaming and IP TV. DSL2+ port bonding is also provided for subscribers who need even more bandwidth or located with loop length longer than 5000 ft.

VoIP Services

• SIP v2 singling protocol and H.248 version 2(*)
• Voice CODEC : G.711 a/µ, G.726, G.729 a/b G.723.1
• Configurable jitter buffer
• Generation of dial tone, second dial tone, ringing tone (ring-back tone), busy tone, off-hook warning tone
• DTMF detection and generation (bi-directional)
• In-Band and Out-of-Band (RFC 2833), (SIP INFO)
• FAX/Modem pass through (T.38) via RTP
• call waiting, call hold, call transfer
• Local dial available(*)
• MLT (Metallic loop testing for subscriber lines) – GR909 and GR844

ATM Functionality

8 VPC/VCC per DSL port
UBR, CBR, rt-VBR, nrt-VBR, ABR QoS Mechanisms
ATM Forum TM 4.0 peak cell rate traffic parameter
Downstream traffic shaping per ATM PVC
ATM F5 OAM cells for End-to-End Loop back test (ITU-T Rec. I.610)
G.998.1 multi-pair ATM bonding (*)
Support 64k PVC

Hardware Specifications

Two TELCO-50 connectors for 48-port ADSL/ADSL2/ADSL2+
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
One power switch
Two RJ-45 ports for loop test out and test in functionality

Power Requirements

Voltage: DC power input (-36V DC ~ -72VDC)
Power consumption : max. 170 Watts

Physical Specifications

19” and 23” Rack-mountable
Dimensions: 439.8 (W) x 251 (D) x 66 (H) mm
Swappable FAN module
Built-in splitter
Side-slip dust filter
Weight: 8.2 Kg

Certification

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 Compliant (*)

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