ADTRAN DSU IV ESP, User Manual

Page: 75 / 194

Chapter 7. Configuring DTE Options
61204011L1-1 DSU IV ESP User Manual 7-9
Anti-Stream
The A
NTI
-S
TREAM
option is used to select the anti-stream timeout.
The anti-stream timeout is the maximum time the DSU IV ESP
transmits data into the network from the DTE. This feature
prevents one DTE device on a multi-drop network from
continuously tying up the transmit circuit back to the master DSU.
The anti-stream timer is reset to zero when RS changes to the active
state and is updated every second while RS is active. When the
anti-stream timeout expires, the DSU IV ESP stops transmitting
DTE data into the network but continues to accept data from it.
This condition exists until the DTE deactivates the RS input.
The factory default setting is T
IMER
O
FF
. Table 7-1 on page 7-3
shows the available options and their AT commands.
CD Options
The CD O
PTIONS
menu is used to select the control mode for the
receive line signal detector (CD) lead. The default factory setting is
N
ORMAL
. Table 7-1 on page 7-3 shows the equivalent AT commands
for setting CD options.
Data Terminal Ready (TR) Options
The TR O
PTIONS
menu is used to select the DSU IV ESP response to
the data terminal ready (TR) lead. The factory default setting is
I
GNORED
. Table 7-1 on page 7-3 shows the equivalent AT commands
for setting TR options.
The
NO DBU IF OFF
selection is available only when a DBU ESP card
is installed and the Network Type is set to DEDICATED.
To disable DBU when DTR is off, set this option for
IDLE WHEN OFF
.