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8
Press Escape to return to the display that you selected in
the following displays:
PORT 1 CONFIG & STATUS
PORT 2 CONFIG & STATUS
9
To set the other port, repeat
C
ONFIGURING THE
The primary timing source determines the timing for the entire HDSL system.
Timing can come from any one of five parts of the Campus system:
• DSX receives timing from the device connected to the DSX-1 port
(default setting)
• PT1 receives timing from the device connected to Data Port 1
• PT2 receives timing from the device connected to Data Port 2
• Internal receives timing from the internal oscillator of the Campus-RS
desktop or line unit
• HDSL receives timing over the HDSL line
Observe the following guidelines when configuring the primary timing
source:
• If the DSX-1 port on a unit is enabled, the Primary Timing Source must
be set to DSX-1. This means that if the DSX-1 port is enabled on both the
local and remote ports, both units must have the Primary Timing Source
set to DSX-1.
• The DSX-1 ports support independent transmit and receive timing.
Therefore, if only the DSX-1 ports are used on both units (that is, the Data
ports are disabled), the host devices connected to the DSX-1 ports may
both be configured as timing sources. This configuration will work only if
the host equipment also supports independent transmit and receive timing.
If the devices do not support independent timing, one of them must be
configured as the circuit timing source and the other one must be
configured for receive (interface) timing.
Campus-Flex RS Interface Card User Manual
Step 2
through
P
T
RIMARY
Setting Up the Campus-RS System
Step
Step
8.
S
IMING
OURCE
4. One of
3-7
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