Page 8 of 66
DTI installation
553-2811-200
Standard 6.0
December 1994
Table 4
SW3 options for the QPC720 PRI/DTI
Switch 3 options for PRI/DTI mode
SW3-1
ON
OFF
=
=
extended superframe format (ESF)
superframe format (SF)
SW3-2
ON
OFF
=
=
B8ZS line encoding (required for 64 kbs)
AMI line encoding
SW3-3
ON
OFF
=
=
facility data link (FDL) yellow alarm method (cannot be used in Canada)
Digit 2 yellow alarm method
Note 1:
All switch positions for S2 (location B22) are OFF except as shown under the column labeled
“Switch S2 settings.” The switch positions of the 8-pole SW3 (location E37) are OFF for DTI mode. For PRI
mode, set SW3 positions as configured in LD 17.
Note 2:
For D2, D3, or D4 framing formats (superframe formats), set all SW3 options to OFF.
Note 3:
ESF and B8ZS applies only to the 1.5 Mbps DTI. DTI2/PRI2 is not supported.
Table 5
QPC720 PRI external connectors
Faceplate designation
Type
J1
9-pin female, D-connector
J2
9-pin female, D-connector
J3
36-pin connector
J4
15-pin male, D-connector
J5
15-pin male, D-connector
J6
15-pin female, D-connector
RCV MON
Miniature bantam jack
XMT MON
Miniature bantam jack