|
|
 |
| |
|
 |
| |
RAD
IMX-4E1 E1 Inverse
Multiplexer |
|
| |
- The IMX-4E1 Inverse
Multiplexer enables splitting and transmitting a
high speed data channel of up to 7.68 Mbps, over up
to four E1 links. IMX-4E1 spans the bandwidth gap
between E1 and E3, providing increased bandwidth
where services higher than E1 are either not
available or are too expensive.
- IMX-4E1 can be ordered
with either 2 or 4 E1 links. For long range
applications, an optional built-in LTU for each of
the links is available.
- Differential delays of
up to 64 msec between the E1 lines are tolerated.
IMX-4E1 compensates for such delays, and the
original stream is reconstructed. The end-to-end
delay of the IMX-4E1 is not more than the maximum
differential delay between the links.
- The automatic rate
fallback feature ensures that the logical channel
remains open even if individual E1 links fail, by
automatically dropping to the next lower rate. When
failed links are recovered, IMX-4E1 automatically
returns to original rate.
- IMX-4E1 provides
immediate connection to installed applications. The
user data port is available with the following sync
data interfaces: V.35, RS-530, V.36/RS-449, X.21 or
HSSI. The data rate can be any multiple of 1.92
Mbps, up to a total of 7.68 Mbps.
- An Ethernet Bridge
port can be ordered instead of a sync data port
interface. The Ethernet bridge port option allows
direct connection to LAN and provides self learning
and extensive packet filtering. The Ethernet bridge
has 10BaseT (UTP) interface, and fully complies with
IEEE 802.3.
- The Ethernet bridge
uses an Enhanced Tinygram compression algorithm,
enabling it to utilize bandwidth more efficiently
and thus reduce the required number of E1 lines.
- Two user-selectable
clock modes are available for the sync type data
port:
- DCE: IMX-4E1 provides both TX and RX clocks to
user DTE.
- External-DCE: IMX-4E1 provides RX clock to user
while receiving TX clock from user.
- Note: Ethernet port
operates in DCE only
- System timing options
include:
- Internal clock: the internal oscillator is the
source for E1 links.
- Loopback: the E1 transmit clock is derived from
one of the E1 receive clocks.
- Station clock: the E1 transmit clock is the source
for framed/unframed all "1"s or G.703
compatible.
- Setup, control,
status, alarms and diagnostic information are
provided via the front panel LCD display or an ASCII
terminal/Telnet.
- Diagnostics
capabilities include:
- Local/remote data port loopback
- Local/remote E1 links loopback
- V.52 BERT.
- Diagnostics can be
executed via the front panel or ASCII terminal
(connected to supervisory port).
- The supervisory port
supports dial-in/dial-out for remote out-of-band
configuration and monitoring (dial-in), as well as
for alarm reporting (dial-out).
|
|
|
| |
Can't
find what you need ? Call or Email
now ! |
|
|
