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This section covers connection and set-up of the channel data ports. The composite port is
covered in the installation section of this manual.
Data Channel Connection
Peripherals are connected to the X.21/V.11 15 way 'D'-type connectors configured DCE and
numbered 1 to 4 at the rear of the multiplexer. The pin connections for these data channels
are defined in Appendix H.
Default Channel Setup
When delivered or factory reset, the Echo Time Division Multiplexer is set to operate with all
channels set as follows:
Rate
Mode
TX Clock
RX Clock
Indicate
Changing the Configuration
The Echo may be configured using an asynchronous terminal. A laptop PC running an
asynchronous terminal emulation program such as PCAnywhere, CrossTalk or Windows
Terminal is ideal for the field engineer. The terminal should be connected via its serial port
to the SUPERVISOR port on the rear of the multiplexer.
Supervisor Terminal requirements
The terminal must be configured to:
8 bit character, no parity, one stop bit, speed 9.6Kbps
A suitable cable for connection of the Supervisor port is defined in Appendix E.
Use and Configuration
:
Off
:
NORMAL
:
INT
:
INT
:
ON
TECHNICAL: 0118 931 2233
Echo 2 Mbps Multiplexer
9
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