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Appendix F 137
S27 Bit-Mapped Option
Indicates the status of command options.
Default: (40h), (064d), (01000000b)
Bit 3, 1, 0 Synchronous/asynchronous selection (&Q
n
, &M
n
)
000 &Q0, &M0 is selected
001 &Q1, &M1 is selected
010 &Q2, &M2 is selected
011 &Q3, &M3 is selected
100 &Q4, &M4 is selected
Bit 2 Leased line control (&L
n
)
0 &L0 is selected
1 &L1 is selected
Bit 5, 4 Sync transmit clock select (&X
n
)
00 &X0 internal clock
01 &X1 external clock
10 &X2 TX slave to RX clock
11 Reserved
Bit 6 ITU-T/Bell mode select (B
n
)
0 B0 is selected
1 B1 is selected
Bit 7 Reserved
S30 Inactivity Timer Value
Range: 0-90
Default: 000
Units: Minutes