Verilink PRISM 4101 (34-00230) Product Manual Instrukcja Użytkownika Strona 14

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2 C
HAPTER
1: G
ENERAL
The dial backup feature ensures that critical data applications are secure. The
dedicated line service is monitored for trouble conditions. When a line failure is
detected, the unit establishes a dial connection through a backup port. Once the
backup link is up, the unit routes the customer data through the switched service.
When dedicated line service is restored, the unit automatically reverts back. The
dial backup port allows you to use any type of external switched service simply by
choosing a modem or ISDN unit for dial backup. The PRISM 4101 may also be
ordered with an internal 33.6 baud modem.
Features
Packaged in standalone housing
Embedded SNMP agent supports the standard MIB-II and the TxPORT enterprise
DDS MIB
Embedded telnet support
Optional Ethernet or Token Ring network interface card (NIC) for integral LAN
interface
TCP/IP connection through the standard SLIP interface or the optional Ethernet or
Token Ring interface
Multirate DDS service at 2.4 to 64 kbps synchronous DTE rates and 2.4 to 57.6
kbps asynchronous DTE rates
TxPORT operation mode allows end-to-end communication
Rate adaptation of subrate DTE over 56 or 64 kbps lines
Dial backup and automatic restoral of DDS line through an internal or external
device
Complete diagnostic capabilities including multiple loops and built-in BERT
Simple setup and software management through
the front panel LCD screen
a VT100 compatible terminal interface
the embedded SNMP Agent
a telnet session
Programmable alarm thresholds
Flash memory allows field software upgrades
Specifications
Network Interface Service Types: DDS-I conforming to TR 62310
Operating Modes: Full duplex, point-to-point, multi-point
Line Rates: 2.4, 4.8, 9.6, 19.2, 38.4, 56, and 64 kbps
Loop Range: Up to 45 dB of loss
Line Connection: RJ-48S jack, 8-pin modular
Timing Source: Network, DTE, Internal
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