A
derivative of the highly successful MicroMux
SP-3, the MicroMux G.704 has been engineered
to reduce cost in this expanding sector
of the market. The MicroMux G.704 can support
fractional E1 data rates, at any Nx64k data
rate, and with any combination of time slot
assignments. CRC4 can be enabled / disabled.
It can also support clear channel 2048kbit/s
operation with local management, acting
as a managed version of the MicroMux G.703.
The MicroMux G.704 supports X.21, EIA530,
RS449 and V.35 interfaces as standard, including
support for the external terminal timing
signal. An engineer can change the configuration
in the field. The MicroMux G.704 supports
75 ohm un-balanced and 120 ohm balanced
G.703 connection, selection of which is
by way of two externally accessible switches
and use of either the BNC connections (un-balanced)
or the RJ45 connection (balanced). An RJ45
async terminal port provides the management
interface. The Multiport unit houses four
G.703 to X.21 converters in a single desktop
chassis.
