Telect MIX 56 User Manual

Telect’s Multiplexer with Integrated Cross-Connect, 56 Circuit (MIX 56) 
chassis houses two fully independent systems, each with 28 DSX jacks and 
up to two M13 multiplexer cards. Each system can be used as a DSX only, 
as a nonredundant multiplexer, or as a redundant multiplexer.

When used as a DSX only, a system can be cabled quickly using the rear 
64-pin connectors and provides full DSX functionality, including patching 
and monitoring, using the DSX jacks on the chassis front.

When a single M13 card is added, a system becomes a nonredundant multi-
plexer/demultiplexer, which combines 28 DS1 or 21 E1 signals into a sin-
gle industry standard DS3 signal and separates a DS3 signal into 28 DS1 or 
21 E1 signals.

Adding a second card provides 1:1 redundancy for all M13 functionality. 
The 28 DS1 low-speed channels and the DS3 high-speed interfaces reside 
on one M13 card occupying one card slot, while the protection card occu-
pies the second card slot. The two cards are in constant communication, 
and all configuration changes made to the active card are also automatical-
ly made to the standby card.

Redundant and nonredundant multiplexer applications include full DSX 
functionality when DS1 wiring is connected to the wire-wrap pins on the 
front of the chassis, rather than to the rear 64-pin connectors.

Configuration, diagnostics, and performance monitoring are performed us-
ing SNMP through the Ethernet port, or using the Craft interface either re-
motely with Telnet through the Ethernet port or locally through the RS-232 
Craft port.