150-357-200-02, Issue 2
Overview
HXU-357 List 1
February 9, 1999
1
O
VERVIEW
The HiGain
®
Multiplexer Unit HXU-357 List 1 is the newest generation of
broadband multiplexers. It offers a low-cost multiplexing solution that
features low-power consumption and a data transfer rate of 45 mbps. The
HXU-357 is designed for HiGain Wideband 3190s that provide a complete
T1 delivery system using a standard open architecture system in a 23-inch
rack space. These HiGain systems multiplex DS1 channels into a single,
industry-standard DS3 data channel. The HXU-357 is capable of transmitting
and receiving up to 28 DS1 signals over a DS3 interface. It also displays
standard office alarms (
When used in a protection configuration comprised of two multiplexers (one
active and the other as a standby), each card monitors the integrity of the user
data and automatically switches out a faulty unit.
Figure 1.
HXU-357 Multiplexers Installed in Wideband 3190
PairGain
LB (loopback)
FAULT
ABNORMAL
Active multiplexer
Standby multiplexer
ACTIVE
PWR (power)
FE (far end alarm)
MN (minor alarm)
MJ (major alarm)
CR (critical alarm)