Paradyne COMSPHERE
3610 User Manual page 54

COMSPHERE 3600 Series Data Service Units
DTE Port: EIA232
Next EIA232 V.35
DTE Port. Selects the active DTE interface. The other port is the alternate Port 1. Refer to the AnswExtBU configuration
option in this table and NetIntf configuration option (Table 4-1).
EIA232 – The EIA-232 connector is typically used for data rates up to 19.2 kbps. Operation at speeds up to 64 kbps is
dependent upon cable length, cable quality, and the local environment. Connector type should match the DTE.
V.35 – For all available rates at distances up to 1000 feet.
RTS Cntrl: DTE
Next FrcOn DTE
Request-to-Send Control. If set to FrcOn, the DSU is always in data mode and never sends control mode idle (CMI) as
the RTS lead is forced ON. If set to DTE, the DSU sends CMI whenever RTS is Off, and data mode idle (DMI) when
RTS is ON.
This configuration is forced ON internally for point-to-point configurations with nondisruptive diagnostics or rate adaption.
Set this configuration option to DTE for multipoint tributaries performing nondisruptive or mixed diagnostics, rate
adaption, or when configuration option M-PtSymPrt is enabled.
FrcOn – Forced On. Keeps the RTS ON continuously, regardless of whether RTS at the DTE interface is ON or Off.
Control DSUs with LPDA-2 enabled must have RTS Cntrl forced ON and CTS Cntrl set to =RTS.
DTE – DSU responds to RTS from the DTE. Does not appear for CBrdg or EBrdg.
CTS Cntrl: Std
Next Std =RTS
Clear-to-Send Control. Controls the CTS lead when RTS is received.
Std – Standard. CTS follows RTS with a delay. CTS is normally controlled by the DTE's RTS lead. However, the CTS
lead can be affected by the response to abnormal conditions such as no signal or test mode, as determined by the
following configuration option settings in this table: RTS Cntrl, CTS Lead, and Circ Assur.
=RTS – Request-to-Send. CTS follows RTS with no delay. This configuration option is required for a control DSU with
LPDA enabled and RTS Cntrl set to FrcOn, or a tributary DSU with LPDA enabled when in an FEP-to-FEP configuration.
In point-to-point configurations where LPDA is disabled and RTS Cntrl is forced ON, CTS Cntrl can also be forced ON if
the DTE interfaces require no delay between RTS Cntrl and CTS Cntrl (0 ms), but RTS Cntrl does not require an
RTS-to-CTS transition. If MUX Funct is set to TDM, MCMP, EBrdg, or CBrdg, CTS will not be affected by network
alarms.
AntiStream:Disab
Next Chang Disab
AntiStreaming. Antistreaming provides circuit protection against a streaming DTE by clamping the RTS lead of the
tributary DSU. A streaming DTE has its RTS lead constantly turned ON.
In TDM or MCMP mode, the AntiStream configuration option is not displayed; rather, you select these configuration
options on a per-port basis in the MUX submenu.
If the tributary DTE turns ON RTS longer than the time specified for the AntiStreaming configuration option, the tributary
DSU turns on its alarm indicator and clamps RTS to Off. Although the tributary DTE is not allowed to send, the DSU can
still respond to commands and is capable of being tested or disabled.
Upon detecting that RTS is no longer turned ON, the DSU turns off its alarm, resets the streaming timer, and allows the
DTE to send data.
This configuration option only applies to a DSU configured with RTS Control set to DTE and is disabled when RTS
Control is set to FrcOn.
Chang – Set timer to any value from 1 to 100 second(s) in increments of 1.
Disab – Sets timer to Disab. When you select Disab, streaming terminal detection is not provided. For async terminal,
enter 0 (zero) for Disable.
4-10
Table 4-4
(1 of 6)
General Configuration Options
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December 1996 3610-A2-GB46-60