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IMX-2T1/E1 Features ( IMX-2T1/E1/CSU )
 | Inverse multiplexing of a standard E1 frame on two T1 links
| Complies with:
 | ITU Rec. G.703, G.704
| AT&T TR-62411, TR-54019
| ANSI T1.403
| AT&T ACCUNET Fractional T45 Service |
| | |
| Several timing options
| Compensates for differential delay
| Control via front panel or ASCII terminal / Telnet
| Telnet using SLIP protocol
| Inband remote management
| Data port supporting n x 128 kbps
| Fractional T1 port supporting n x 128 kbps
| Transparent to E1 timing
| Built-in CSU on the T1 links
| Call-in and call-out functions
| Built-in BERT and loopbacks |
| | | | | | | | | | | |
IMX -2T1/E1 Description( IMX-2T1/E1/CSU )
| IMX - 2T1/E1 ( IMX-2T1/E1/CSU ) Inverse Multiplexer enables E1 equipment to utilize T1
transmission facilities by converting any E1 frame (2.048 Mbps) received
by the E1 port, into two T1 frames (1.544 Mbps), and then transmitting
them simultaneously over two separate T1 links. The E1 frame (256 bits)
is equally divided between both T1 frames. Operation of the IMX - 2T1/E1
is transparent to the E1 framing pattern. |
| Compensation is provided for any differential delay of up to 64 msec
between the T1 lines, for proper reconstruction of the original data
stream. |
| IMX - 2T1/E1 ( IMX-2T1/E1/CSU ) provides support for various timing options. These
include: |
| Transparent timing: T1 transmit clock of both links is locked to E1
receive clock, and the E1 transmit clock is locked to T1 link 1 or
link 2 receive clock.
| External E1 timing: T1 transmit clock of both links and E1 transmit
clock are locked to the E1 receive clock.
| Loopback timing: the transmit clocks of both T1 links and E1
transmit clock are derived from the receive clock of T1 link 1, link 2
or fractional T1.
| Internal timing: an internal oscillator with 32 ppm accuracy is the
source for all the E1 and T1 transmit clocks.
| Station Clock timing: the source for both E1 and T1 transmit clocks
is the framed/unframed "all ones" 1.544 Mbps AMI or
B8ZS-coded signal. |
| | | |
| A separate data port or Fractional T1 port utilizes unused timeslots
on the T1 links to pass additional data. The data port supports rates of
n x 128 kbps (where n = 1...7), up to 896 kbps. Available interfaces for
the data port include V.35, RS-530, X.21, V.36/RS-449 and Ethernet
10BaseT (UTP). |
| Timing mode for the data port is user-selectable for DCE or External-DCE.
In DCE mode, the data port provides both receive and transmit clocks to
the attached user DTE equipment. In External-DCE mode, the data port
provides the receive clock to the user equipment, while receiving the
transmit clock from the user equipment. |
| Setup, control, status, alarms and diagnostic information is provided
via the front panel LCD display or an ASCII terminal / Telnet. |
| IMX - 2T1/E1 features call-in and call-out functions. The call-in
function allows a remote operator at a central site to perform all
functions available through the supervision terminal. The call-out
function allows dialing a preprogrammed number when an alarm event
occurs. |
| Diagnostics capabilities include: |
| Local/remote E1 loopback
| Local/remote T1 loopback
| Local/remote data port or fractional T1 loopback
| E1, data port or fractional T1 BER testing
| Inband code activated loopback on data port or fractional T1. |
| | | |
| Diagnostics can be executed via the front panel or ASCII terminal. IMX
- 2T/E1 also supports the T1 network loopback per AT&T 62411 (inband
code activated), with statistical diagnostic capability according to
AT&T PUB 54016. |
| Compliance is provided for ACCUNET Fractional T45 Service (AT&T),
which allows choosing new transmission speeds higher than T1 rates. |
IMX - 2T1/E1 ( IMX-2T1/E1/CSU )
Ordering the RAD IMX - 2T1/E1
IMX - 2T1/E1/~/*/?
E1 to 2 x T1 Inverse Multiplexer
| ~ |
Specify power supply:
AC for 115/230 VAC
48 for -48 VDC |
| * |
Specify optional drag-and-insert data port interface:
V35 for V.35 interface
703 for G.703 interface |
| ? |
Specify optional CSU for built-in CSU on T1 ports
(default is without CSU) |
IMX-2T1/E1 Inverse multiplexer pdf
data sheet
RAD IMX-2T1/E1 Inverse mux pdf
manual
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