Dialogic PCI Linecard Installation and Replacement
R3B
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Aug 2001 Ericsson Enterprise AB
8
Configuring the Linecard for SCbus Mode
To function in SCbus mode, the CTbus on the linecard
must
be configured to use an
SCbus clock. You configure the CTbus with hardware using jumpers or with software by
the Dialogic System Software, depending on the linecard you are installing.
•
D/41EPCI and D/240PCI-T1 linecards use hardware to configure the CTbus.
•
D/120JCT-LS linecards are configured automtically by the Dialogic System Software.
Skip to “Configuring the Default Line State (Hook Switch State).”
To configure a D/41EPCI or a D/240PCI-T1 for SCbus mode:
•
Install jumpers on pins 1–2 of JP6 and JP7 as shown in Figures 5 and 6.
For the location of JP6 and JP7, refer to:
- Figure 1 if you are installing a D/41EPCI
- Figure 3 if you are installing a D/240PCI-T1
Figure 5. Jumper blocks JP6 and JP7
Figure 6. Jumpers in place on pins 1 and 2
JP6
JP7
Pin 1
Pin 2
Pin 3
Pin 2
Pin 3
Pin 1
JP6 JP7
CTbus pin