Optimux-134, Optimux-125
Fiber Multi
lexers for 16 E1/T1 and Ethernet
The unit multiplexes up to 16 E1/T1 links.
In 34/25-Mbps operation mode, the data
rate of the TDM ports can partially be
replaced (user-selectable) by the
10/100BaseT user Ethernet traffic or by
an optional high-speed data V.35 interface
(see
Table 1
).
UPLINK INTERFACES
Various interfaces (based on SFP
transceivers) are available for both the
active and the backup uplinks (see
Table 1
and
Ordering Options
):
• Electrical via coax (SMB) connector
(34 Mbps mode operation only)
• 1310 nm short or long-haul laser and
1550 nm long-haul laser interfaces for
extended range over single-mode fiber
• Single fiber interface using WDM
technology, with the laser transmit
signal at a different wavelength than
the receive signal (1310 nm and
1550 nm).
UPLINK REDUNDANCY
Upon link failure, the unit automatically
switches to an optional second uplink as a
backup.
E1/T1 INTERFACE
Optimux-134/125 multiplexes 16 E1/T1
channels. The E1/T1 interfaces comply
with the ITU-T G.703. Line coding is HDB3
or B8ZS, respectively. A pair of LEDs
monitors loss-of-signal and AIS on each
E1/T1 receive line.
FAST ETHERNET INTERFACE
Optimux-134 and Optimux-125 feature
fast Ethernet ports enabling a full
100-Mbps Ethernet connection in addition
to the capacity of the 16 E1/T1 channels.
The Optimux devices are supplied with a
10/100BaseT Ethernet USER port. This
port is activated via a software key. The
license can be purchased for 8/6-Mbps
granularity to work in 34/25-Mbps
operation mode, or for full bandwidth to
work in 134/125-Mbps operation mode.
V.35 INTERFACE
The Optimux devices can be supplied with
one V.35 (2048/1544 kbps) channel that
replaces channel 16 by user activation.
The V.35 interface can only be used in
34/25-Mbps operation mode.
TIMING
The Optimux devices transmit each E1/T1
channel separately so that the clock of
each E1/T1 channel is independent.
Devices operating in 34/25 Mbps mode
support internal and loopback timing
modes. The 134/125-Mbps operation
mode uses only internal timing.
Figure 1. Optimux-134/125 Sharing Campus Services over Fiber Optic Link
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