NDA-24296 CHAPTER 3
Page 609
Revision 1.0
PA-24DTR (DLI)
Digital Line Interface
5. Switch Settings
Standard settings of switches on this circuit card are shown in the table below.
Figure 3-192 Available Locations for Loopback Testing
SWITCH
NAME
SWITCH
NO.
SETTING
STANDARD
SETTING
MEANING
SW00
(MB)
UP Circuit card make busy
DOWN
×
Circuit card make busy cancel
SW01/13B
0
ON Internal Loopback : Set
OFF
×
Internal Loopback : Cancel
1
ON External Loopback : Set
OFF
×
External Loopback : Cancel
2
ON 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 illustrated below, loopback testing can be performed at three locations on this card by key setting of the SW01/13B.