Cabletron Systems CSMIM-T1 Installation Manual page 173

Table 7-9 Saved Command Settings with S16
Bit
Function
Position
0 Local Analog Loopback
1 not used
2 Local Digital Loopback
3 Remote Digital Loopback status
(initiated by the remote modem)
4 Initiate Remote Digital
Loopback
5 Initiate Remote Digital
Loopback with Self-Test
6 Initiate Local Analog
Loopback with Self-Test
7 not used
S18= n
Test Timer
Range: 0 - 255 seconds
Default: 0 seconds (disables timer)
Sets how long the modem conducts a loopback diagnostic test.
Register S18 is available only in normal or direct mode. When
S18 is set to 0, type AT&T0 <Enter> to end a test.
CSMIM-T1 Hardware Installation Guide
Decimal Value
0 disabled
1 enabled
0 disabled
1 enabled
0 loopback Off
1 loopback in
progress
0 disabled
1 enabled
0 disabled
1 enabled
0 disabled
1 enabled
Registers
7-47