Advanced Search
Hatteras Ethernet Modem 920401-2020-03
$135.99Free Shipping!
Item Code:
Item Condition Description:
Please note, this unit comes with switching power supply only (as pictured). No cables or any other accessories! Unit has minor scuffs and scratches, but is fully tested & completely operational.
Add-ons / Accessories
If you wish to order addon / accessories please checkoff the box next to the addon items and press the add to cart button.
Item Description

Genuine Original Hatteras Networking High-Speed Network Ethernet Modem with Switching Power Supply PSC30U-480 HN404-U-2E-I-T 920401-2020-03. Hatteras Networks’ HN400 series of high-speed Ethernet service edge products extend the Ethernet Service EdgeTM to sites without access to fiber. Boasting a powerful Ethernet in the First Mile (EFM) solution, the HN400 quickly and economically delivers managed, symmetrical bandwidth and services at rates of up to 5.7 Mbps per pair over outside plant copper utilizing standards-based 802.3ah 2BASE-TL technology.  Extending High-Bandwidth Ethernet Services to Sites With No Access to Fiber - Carriers can now offer symmetrical, broadband connectivity to business sites, cell towers and DSLAMs at speeds of 10- 0Mbps – even up to 45 Mbps – without the expense and delays associated with fiber deployment. The HN400 solution offers a powerful alternative to Ethernet over TDM… reaching much greater distances, and yielding a 7+ factor improvement in speed, with greater reliability at lower cost. Using the HN400, carriers can leverage existing copper assets to deliver symmetrical, high-bandwidth Ethernet services with the quality of traditional private-line services. These services can be delivered at full CSA (customer serving area) distances.  The HN400 family is a half-rack-wide / 1 RU-high, carrier-class, temperature-hardened set of platforms that enable carriers of all sizes to quickly and economically deliver valuable business broadband services over their copper infrastructure. When deployed in a CO or remote terminal (RT), the HN400-U can subtend a single HN400 platform… yielding an almost immediate return on investment. The connection between the units consists of 1 to 8 copper pairs, bonded into a single 2BASE-TL connection of up to 45 Mbps. The HN400-U detects and recovers from any loop loss, loop addition and loop degradation without service disruption or operator intervention. The HN400 series is fully compatible with the Hatteras Networks HN4000 Ethernet Edge switching platform, which provides Layer 2 aggregation and switching for subtended HN400s for the delivery of transparent Metro Ethernet services.

Hatteras Model Number: HN404-U-2E-I-T
Hatteras Part Number: 920401-2020-03
Phihong Part Number: PSC30U-480



Operating Temperature:-40°C (-40°F) to +75°C (+167°F)
Storage/Transportation Temperature:-40°C (-40°F) to +70°C (+158°F)
Operating Humidity5% to 85% per GR-63
PowerRedundant (dual) DC feeds: 11V to 14V, 15W maximum at 12V, or optional external AC power supply:
100-250V, 50-60 Hz
Data Link LayerIEEE 802.1D Bridging, IEEE 802.1Q VLAN Bridging and Stacked VLAN Q-in-Q support, IEEE 802.1p Prioritization,
IEEE 802.3-2002, IEEE 802.3x Flow Control, IEEE 802.3ah 2BASE-TL, 10/100BASE-TX and 100BASE-X, 1600 Byte MTU
Physical LayerIEEE 802.3ah 2BASE-TL, ITU-T G.991.2.bis (Annex A, B, F & G), ETSI TS 101 524 (G.shdsl), ANSI T1.417 spectral compatibility, EIA RS232C
(craft port), IEEE 802.3 10/100BASE-TX, IEEE 802.3 100BASE-X, -48 VDC Redundant Power, Local Switching, Sealing Current
Network LayerRFC 791 IP, RFC 792 ICMP, RFC 793 TCP, RFC 768 UDP, RFC 826 ARP, RFC 1122 Host Requirements
Network Management LayerRFC 854 Telnet, RFC 959 FTP, RFC 1155 TCP/IP management, RFC 1901 SNMP v1/v2c, RFC 1213 MIB-II, RFC 1215 Traps, RFC 2578
SMIv2, RFC 2579 Textual Conventions SMIv2, RFC1907 SNMPv2-MIB, RFC2819 RMON-MIB, RFV2863 IF-MIB, IEEE 802.3ah OAM, RFC
1769 Layer SNTPv3 - Time Synchronization, RFC 2131DHCP, Error logging and SNMP Trap alarms based on GR-474-CORE and GR-883-
CORE, SSHv2, RFC 2616(HTTP), RFC 3076 (XML)




Please wait...
The request is currently being processed.
Please do not navigate to another page during this process.
Thank you for your patience.
Cancel request