Actiontec electronic Plug n' Play Voice/Fax Modem V.90 ISA - Manual (Page 58)

58
AT Commands for Testing and Debugging
The following commands are to be used for testing and debugging only and are not
meant for general use.
&&C Write to/Read from DSP Register
d n a m m o C t c e ff E
- > c o l < C & & T A
> l a v < ,
. > c o l < n o it a c o l t a r e t s i g e r P S D o t > l a v < e u l a v e h t s e ti r w
> c o l < C & & T A . > c o l < n o it a c o l m o rf s d a e r
&&L Line-to-Line Loopback
This command provides a loopback for line-to-line.
&&R Write to/Read from DSP RAM Location
d n a m m o C t c e ff E
-, > c o l < R & & T A
> l a v <
> c o l < n o it a c o l M A R P S D o t > l a v < e u l a v e h t s e ti r w
> c o l < R & & T A > c o l < n o it a c o l m o rf s d a e r
&Tn Self-Test Commands
This command allows the user to perform diagnostic tests on the modem. These tests
can help to isolate problems when experiencing periodic data loss or random errors.
d n a m m o C t c e ff E
0 T & . s s e r g o r p n i t s e t y n a s p o t S .t r o b A
1 T &
, n o it a r e p o m e d o m s e if ir e v t s e t s i h T . p o o l g o l a n a l a c o L
d n a m e d o m e h t n e e w t e b n o it c e n n o c e h t s a ll e w s a
s i E T D l a c o l e h t t a d e r e t n e a t a d y n A .r e t u p m o c
l a c o l e h t o t d e n r u t e r d n a , d e t a l u d o m e d n e h t , d e t a l u d o m
. e n il -f f o e b t s u m m e d o m e h t , y lr e p o r p k r o w o T . E T D
3 T & .t s e t k c a b p o o l l a ti g i d l a c o L
6 T &
e h t y fi r e v n a c t s e t s i h T .t s e t k c a b p o o l l a ti g i d e t o m e R
, k n il s n o it a c i n u m m o c e h t , m e d o m l a c o l e h t f o y ti r g e t n i
l a c o l e h t t a d e r e t n e a t a d y n A . m e d o m e t o m e r e h t d n a
. m e d o m e t o m e r e h t , m o rf d e n r u t e r d n a , o t t n e s s i E T D
h ti w e n il - n o e b t s u m s m e d o m e h t , y lr e p o r p k r o w o T
. d e l b a s i d l o rt n o c r o rr e