ISDN Unit
A895
BIT SWITCHES
SM 2-9 A265/A267
Bit Switch 19
No. FUNCTION COMMENTS
0
Permanence of the link
0:
Set/released each LAPD
call
1:
Permanent
This bit is normally 0, depending on network
requirements.
1
Channel used in ISDN L2
(64k) mode
0:
B1
1:
B2
When making an IDSN L2 back-to-back test, you
can select either the B1 or B2 channel with this bit
switch.
2
SPID procedure (L2)
0:
Disabled
1:
Enabled
This is normally fixed at 0.
3
G4 SPID procedure (L2)
0:
Disabled
1:
Enabled
This is normally fixed at 0.
4-7
Not used Do not change the factory settings.
Bit Switch 1A: CPS Code Used for G4 to G3 Fallback - 3
No. FUNCTION COMMENTS
0
to
6
Condition for fallback from G4 to G3
See the explanation for bits 0 to 6 of bit switch 17
7
Not used. Do not change the setting.
Bit Switch 1B: CPS Code Used for G4 to G3 Fallback - 4
No. FUNCTION COMMENTS
0
to
6
Condition for fallback from G4 to G3
See the explanation for bits 0 to 6 of bit switch 17
7
Not used. Do not change the setting.
Bit Switch 1C: CPS Code Used for G4 to G3 Fallback - 5
No. FUNCTION COMMENTS
0
to
6
Condition for fallback from G4 to G3
See the explanation for bits 0 to 6 of bit switch 17
7
Not used. Do not change the setting.
Bit switches 1D to 1F are not used. Do not change any of the factory settings.