NEC Electra Elite IPK II System Hardware Manual page 198

Document Revision 3
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ISDN
PRI
Provider
The CSU may not always be required
Figure 6-28 ISDN PRI Connectors
Table 6-21 DTI Configurations
E&M Tie
DTI-U(X)
Lines
DTI-U10
DTI-U20
DTI-U30 X
DTI-U40 X1
X Supported
N/A Not Supported
X1 When using 4.XX or lower firmware or 5.XX or higher, DIP Switch SW3-1
is set in the T-1 Mode.
X2 When using 5.XX or higher, DIP Switch SW3-1 is set in the PRT Mode.
ISDN PRI
CSU/DSU
T-1 Trunking K-CCIS
X
X
X X
X1 X1
Installing ETUs (Circuit Cards)
Electra Elite IPK II
MDF
TA
TB
RA
RB
PRT Mode
N/A
N/A
N/A
X2