Comtech EF Data CDM-750, Installation And Operation Manual

Page: 90 / 300

CDM-750 Advanced High-Speed Trunking Modem Revision 2
Front Panel Operation MN-CDM750
5–14
5.2.2.1.3 (CONFIG) INTF: PIICX = OC3
This menu is not accessible if a PIIC OC ‐ 3 Single or Multi Mode module, or an STM ‐ 1
Copper module is not installed in a PIIC slot.
PIICX: IntfType ClkSource RxBuffer Mask
OC3-Off (
)
Where X designates the optional OC ‐ 3 or STM ‐ 1 interface as being installed in Plug ‐ In Interface
Card slot 1 (PIIC1) or slot 2 (PIIC2) : Use the
W X
arrow keys to select IntfType , ClkSource ,
RxBuffer , or Mask , and then press ENTER .
The state of the PIIC interface is displayed on the bottom line. The first half of this indication
displays the installed state of the module and its SFP – in this example, this display confirms that
the OC ‐ 3 Single or Multi Mode SFP, or the STM ‐ 1 Copper module and accompanying SFP are
installed into the PIIC slot. The second indication displays the operational state of the SFP – this
display example confirms that, while the module SFP is plugged in, the interface is Off (i.e., not in
use).
(CONFIG: INTF) PIICX (OC3)
Æ
IntfType
Interface Type: NONE
(
)
Use the
ST
arrow keys to select NONE or OC3/STM ‐ 1 and then press ENTER .
Selecting NONE disables the interface. The CONFIG: Intf menu will display the
operational status for that slot as Off . Otherwise, Selecting STM ‐ 1 enables the PIIC
interface for this interface type.
(CONFIG: INTF) PIICX (OC3)
Æ
ClkSource
Clock Source: TxClock RxClock
TXC RXS (
)
Use the
W X
arrow keys to select TxClock , or RxClock , and then press ENTER . The bottom line
displays the current setting for each parameter.
(CONFIG: INTF) PIICX (OC3)
Æ
ClkSource
Æ
TxClock
Tx Clock Source: TX CLK
(
)
To lock the Tx symbol rate of the modulator to the appropriate clock source: Use the
ST
arrow
keys to select RX SAT or TX CLK , and then press ENTER .