Westermo TD-22 - Manual (Page 35)

36 6177-2203
S16 – General Bit Mapped Test Options Status (&T) (Read only register, not stored with &W)
Indicates the test in progress status.
Bit 0 Local analogue loopback
0 =
Disabled (Default.)
1 = Enabled (&T1)
Bit 1 Not used
Bit 2 Local digital loopback
0 =
Disabled (Default.)
1 = Enabled (&T3)
Bit 3 Remote digital loopback (RDL) status
0 =
Modem not in RDL (Default.)
1 = RDL in progress
Bit 4 RDL requested (AT&T6)
0 =
RDL not requested (Default.)
1 = RDL requested (&T6)
Bit 5 RDL with self test
0 =
Disabled (Default.)
1 = Enabled (&T7)
Bit 6 Local analogue loopback (LAL) with self test
0 =
Disabled (Default.)
1 = Enabled (&T8)
Bit 7 Radio sub carrier option (AT&E)
0 =
Disabled (&E0) (Default.)
1 = Enabled (&E1)
S18 – Test Timer
Sets the length of time, in seconds, that the modem conducts a test (commanded by &Tn) before
returning to the command mode. If this register value is zero, the test will not automatically
terminate.
Default 0 {0-255} seconds
S19 – AutoSync Bit Mapped Options
Normally not editable by the user.
S20 – AutoSync HDLC Address or BSC Sync Character
Normally not editable by the user.
S21 – V.24/General Bit Mapped Options Status (Read only register)
Indicates the status of command options.
Bit 0 Set by &Jn command but ignored otherwise.
0 =
&J0 (Default.)
1 = &J1
Bit 1 Reserved
Bit 2 CTS behaviour (&Rn)
0 =
CTS tracks RTS (&R0)
1 = CTS always on (&R1) (Default.)
Bits 3-4 DTR behaviour (&Dn)
0 =
&D0 selected (Default.)
1 = &D1 selected
2 = &D2 selected
3 = &D3 selected