Filter
Top Products
COMSPHERE DualFlow Data Service Units
5-12 December 1996 3615-A2-GB20-20
Table 5-3
(4 of 4)
DBM Configuration Options
Primary Core:No
Next Yes No Prev
DBM Primary Core
. When enabled, the DSU is disabled and the DBM is enabled so that it functions as a V.32 DBM or
Switched 56 DBM.
Yes — Enables the Primary Core so the unit operates like a 3600 Series DBM-V, DBM-S, or DBM-D.
No — Disables the Primary Core so that the DSU function is active.
No is the factory-set (default) setting for a
DualFlow DSU.
DTRCallCon:Orig for SyBC, Ansr for DiDg and SyBT configurations
Next Orig Ansr Disab Prev
Data Terminal Ready Call Control
. DTRCallCon uses the state of the DTR lead to control backup. When set to Orig, the
DBM originates a backup. When set to Ansr, the DBM only answers a backup call when DTR is active. The DTR lead is
ignored when DTRCallCon is disabled.
Orig — DTR lead is used for
outgoing
calls. When Orig is selected, the DBM originates (dials out) a backup call
when DTR is raised based upon the number stored in the Backup Directory specified by the Backup Dir
configuration option, and drops the call when DTR goes low. The DBM will try to call the number ten
times, or until
TriesTimeOut
expires
.
If Multicall is also enabled, the DBM uses the multiple calling cycle.
(
A phone number must have been entered into the Backup Directory. If a call cannot be completed, check
Expanded Health and Status messages
.)
Ansr — DTR lead is used for
incoming
calls. When Ansr is selected, the DBM drops a backup call when DTR
goes low or will not answer an incoming call if DTR is low.
Disab — Disables DTR Call Control; the state of the DTR lead is ignored.
EchoCancel:Disab
Next Enab Disab Prev
Echo Cancel
. This configuration option is only displayed for a Switched 56 DBM and is required if the Switched 56 kbps
network is US SPRINTr or when the network has echo cancellers. Disable this configuration option if the DBM is
interfaced to an AT&T Switched 56 kbps 4-wire service facility.
Enab — Enables Echo Cancel.
Disab — Disables Echo Cancel.
Remot DBM:4-wire
Next 2-wire 4-wire Prev
Remote Dial Backup Module
. Specifies the identity of the far-end Switched 56 DBM so the appropriate dial backup
process completion time can be determined. This configuration option only appears for a 2-wire Switched 56 DBM with
EchoCancel
enabled. If unsure of whether the remote DBM is 2-wire or 4-wire, select 4-wire.
2-wire — Originating remote DBM is a 2-wire Switched 56 DBM, so the process completes in 460 milliseconds.
4-wire — Originating remote DBM is a 4-wire Switched 56 DBM, so the process completes in 3.85 seconds.
Msg Clamp: Enab
Next Enab Disab Prev
Message Clamping
. Controls behavior of the data leads when disruptive diagnostic tests and commands are received
from the remote DBM.
Enab — Received Data (RXD) is held to MARK and LSD is turned Off during diagnostic exchanges. This prevents
diagnostic messages from reaching the DTE interface.
Disab — DSU passes diagnostic messages to the DTE interface. Use the Disable setting if the remote DSU is
configured for switched RTS (RTS Control is set to DTE).