NDA-24296 CHAPTER 3
Page 609
Revision 1.0
PA - 24 D TR ( D LI)
Digital Line Interface
5. Switch Settings
Standard settings of switches on this circuit card a re shown in the table below.
Figure 3-192 Available Locatio ns for Loopback Testing
SWITCH
NAME SWITCH
NO. SETTING STANDARD
SETTING MEANING
SW00
(MB) UP Circuit card make busy
DOWN ×Circuit card make busy c ancel
SW01/13B 0ON Internal Loopback : Set
OFF ×Internal Loopback : Cancel
1ON External Loopback : Set
OFF ×Externa l Loopback : Cancel
2ON Payload Loopback : Set
OFF ×Payload Loopback : Cancel
3OFF ×Not used (Fixed to OFF)
Switch
TDSW Interface
PAD
Speech Path
Control Block
Framer
Line Interface
TERMINAL
EQUIPMENT
External Loopback
(Line Loopback)
Payload Loopback
Internal Loopback
R
T
Speech Path
PA-24 DTR (DLI)
As il lust r ated below, loop back testi ng ca n be performed at three loc at i ons on thi s card by k ey se t ting of the SW01/13B.