Qlink-3000 Multiplexing modem
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Copyright © 2003 -2005 Cronyx Engineering
39
“PCLK source” parameter
In order to specify the synchronization source for the transmitting path of the SHDSL
port, select the “PCLK Source” item. The synchronization source may be one of the
following:
• Internal generator of the device – “Int”;
• E1 port receiving path – “Port 0” or “Port 1” (for the model equipped with two E1
ports).
In the majority of cases the synchronization source for the SHDSL transmitting path
must be set E1 port receiver (for example, “Port 0”).
“Mode” item
To set the operating “Mode” for the device. When two devices are operating in a pair,
one of them must be set as “CO (Central Office)”, and the other - as “RT (Remote
Terminal)”.
“Port 0...” and “Port 1...” menus
These two menus are designed to specify configuration parameters for the corresponding
ports.
Port E1 configuration
Port 0
1. Framing: E1
2. Timeslots...
3. Timeslot 16: Use
4. Crc4: No
5. Idle code: 0xd5
6. Receiver gain: Low
7. Loss of sync action: Remote Alarm
Command: _
The following parameters are specified for E1 ports:
• Operating mode (Framing): with the G.704 cycle structure (E1) or transparent G.703
stream translation (Unframed). This menu item is not displayed, if a bandwidth of
other port exceed 256 kbit/sec (4 x 64 kbit/sec);
• Timeslots, which are transmitted over the SHDSL line. This menu item is not
displayed, if the port operates in transparent G.703 stream translation mode;
