Visara 1199 TWA Mux - Manual (Page 10)

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Chapter 1: Introduction
1199-T64
The MTX 1199-T64 Multiplexer provides for the attachment of up to 64 devices via two
multiplexed coax output ports from a MTX Communications Server, each of these
connections servicing up to 32 device ports. Each 1199-T64 Multiplexer requires two (2)
associated MCC II adapters on a MTX Communications Server. Alternatively, each 1199-
T64 multiplexed coax port (32 device ports) may be serviced by a single MCC II adapter
in different MTX Communications Servers. Each MCC II Port 0 output on the server is
connected to the 1199-T64 via a coaxial cable. Each MCC II board must be configured
for 32-port multiplexer support.
Up to 64 devices may be attached to the 1199-T64. Each coax connection enables two
groups of 16 device ports. Each group of 16 ports uses an EIA/TIA-568, EIA/TIA TSB-
36, Category 3 or better, 25-pair UTP cable terminated at the 1199-T64 end with a 50-
position RJ-21X connector. The other end of the 25-pair cable is typically terminated to a
common telephone wire punch-down block. Devices attaching via a 1199-T64 require a
Balun or equivalent circuit, such as an IBM DPC-T3 or ADC Kentrox 2000 or 3000
series adapters.
Figure 1-1: Typical 1199 Mux Network Connection
25S/65S
Communications
Servers
1199-
T32/T64
Punch
Down
Block
RG62 Coax
25-Pair Twisted
Pair Cable
Twisted Pair Cable
Punch
Down
Block
Twisted Pair Cable
Twisted
Pair Cable
Receptacle Plate Receptacle Plate
Coax
Terminal
Coax
Terminal
DOC-T3
Adapter or
Balun
DOC-T3
Adapter or
Balun