Western Telematic SRM-100 - Manual (Page 50)

Register Range Default Function
S23 --- --- Bit Mapped Options.
Bit
Option Val Descrip Cmd
0 Obey request from remote modem 0 Disabled &T5
for remote digital loopback test
1 Enabled &T4
1-3 Assumed DTE Rate 0 300 bps
1 600 bps
2 1200 bps
3 2400 bps
4 4800 bps
5 9600 bps
6 19.2K bps
4,5 Parity Option 0 Even
1 Space
2 Odd
3 Mark
6,7 Guard Tones 0 Disabled &G0
1 550 Hz &G1
2 1800 Hz &G2
S24 --- --- Not Used.
S25 0 - 255 5 Async DTR Delay. Sets the duration (in hundredths of a second) that DTR
must be dropped in order to be interpreted as a DTR loss. Allows the modem
to differentiate between a random glitch and a true DTR loss.
In most cases, the default value can be used. The S25 register is useful for
setting compatibility with older systems running under older operating
software.
S26 0 - 255 1 Sync RTS/CTS Delay. The modem will ignore a change in RTS/CTS status
for the time interval (in hundredths of a second) defined in this register, when
in the synchronous mode.
S27 --- --- Bit Mapped Options.
Bit
Option Bits Descrip Cmd
0,1,3 Operation Mode 0 1 3
0 0 0 See &Q0 &M0 or &Q0
0 0 1 See &Q1 &M1 or &Q1
0 1 0 See &Q2 &M2 or &Q2
0 1 1 See &Q3 &M3 or &Q3
1 0 0 See &Q4 &Q4
1 0 1 See &Q5 &Q5
1 1 0 See &Q6 &Q6
2 Line Type 0 Dial Up &L0
1 Leased Line &L1
4,5 Transmit Clock 0 Internal &X0
1 External &X1
2 Slave &X2
6 Service Type 0 CCITT B0
1 Bell 212A B1
7 Not Used.
S28 --- --- Not Used.
10-4
SRM-100 - Secure Rack Modem, User's Guide S-Registers