User`s manual

S23 register - Bit mapped register
Bit Function Value Related command
0 RL enable/disable 0-RL disabled &T5
1-RL enabled &T4
1 Loss of Rx Signal 0-Rx Signal Present
1-Loss of Rx Signal
2 Out of Service (OOS) 0-Normal Operation
1-OOS Signal Present
3 Switched call status 0-Call Disconnected
1-Call Connected
4-7 Not used
S27 register - Bit mapped register
Bit Function Value Related command
0-1 Not used
2 Line type 0-Dial line &L0
1-Leased line &L1
3 Not used
S27 register, continued
4-5 Txclk timing 0-internal timing &X0
source 1-not used
2-slave timing &X2
3-not used
6 Leased line speed 0-56K &N0
1-64K &N1
7 Not used