RAD Data comm FOMi-T1 Manual de usuario descargar pdf (Pagina 3)

Immunity is provided against electrical

interference such as EMI, RFI, spikes and

differential ground loops. Protection is

provided against sparking and lightning,

and a secure link is maintained in

hazardous or hostile environments.

Diagnostics include V.54 local analog,

remote digital loop tests, and an internal

V.52 BER tester.

The loops can be activated from the front

panel, the PCU, the central SNMP

management, or the digital interfaces that

support loop activation signals. An internal

BER tester that complies with V.52/511

pattern is also available.

FOMi-40's field-changeable interface

includes an optional built-in Ethernet

bridge interface. This option can be used

for LAN-to-LAN connectivity over the fiber

link, using only a pair of FOMi-40 units.

The FOMi-40 system configuration is

stored in non-volatile memory to minimize

system downtime when power is lost or

when a faulty unit is replaced.

The inband management channel provides

real-time alerts for:

• Disconnection of the digital data

transmission

• Disconnection of the management

channel

• Remote modem failure

• Loop activation.

The front panel LCD provides real-time

indication of system status on both the

local and the remote modem.

The card versions FOMi-40C (single

modem) and FOMi-40CD (double modem)

are available for installation in LRS-24, a

19-inch modem rack with SNMP

management that accommodates up to 24

modems. These card versions can be

managed in an LRS-24 hub from an ASCII

terminal or by RADview, RAD's SNMP

management application that runs on PC

or HPOV UNIX platforms.

FOMi-40 supports a variety of digital

interfaces, including V.24/RS-232

(64 bps), V.35, X.21, RS-530,

V.36/RS-449, G.703 Codirectional

(64 kbps), G.703 E1, G.703 T1, and

10/100BaseT bridge supporting

IEEE 802.3× flow control and

backpressure.

Figure 2. Central Site Application with SNMP Management

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