Paradyne COMSPHERE 3610, Operator'S Manual

Page: 136 / 310

COMSPHERE 3600 Series Data Service Units
6-8 July 1999 3610-A2-GB91-90
Table 6-1
(2 of 3)
DSU Configuration Options
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 DSU. This configuration option applies to both the DSU and DBM.
When Disr Type is set to 3600e (see Diagnostic DSU Configuration Options , Table 6-2), as required for
64CC service, and Msg Clamp is set to Enab, the DSU passes the escape header portion of a diagnostic
message to the DTE before realizing that it is an escape header and not valid data; however, the DSU does
clamp the ensuing command portion of the message.
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, General Configuration
Options , Table 6-6).
TxElasStor: Disab
Next Enab Disab Prev
Transmit Elastic Store.
4
Elastic store hardware consists of a transmit buffer on the DSU’s transmitted data
(TXD) lead. Serial data from the extended circuit is clocked into the DSU’s elastic store using a clock (on
EIA-232-D Pin 24 or V.35 Pins U and W) provided by the extended circuit received clock lead (on EIA-232-D
Pin 17 or V.35 Pins V and X). The DSU uses its own system timing to clock data out of the buffer. Transmit
Elastic Store is reset upon power-up, overflow, or after the request-to-send lead makes an Off-to-ON
transition.
Enab — Enable this configuration option if you have an extended network.
Disab — Disable this configuration option if you do not have an extended network.
RxElasStor: Disab
Next Enab Disab Prev
Receive Elastic Store. Receive Elastic Store hardware consists of a receive buffer on the DSU’s received
data (RXD) lead. This configuration option should be enabled when interfacing to a DTE or DCE that
provides its own clock source and does not support the Transmit Elastic Store configuration option. The
Receive Elastic Store configuration option is supported in single port DSUs configured for disruptive
diagnostics.
Enab — Enable this configuration option if you have an extended network.
Disab — Disable this configuration option if you do not have an extended network.
19.2 PowrLvl: + 6
Next Enab Disab Prev
19.2 kbps Power Level. Selects the appropriate power level, in dBm, for operation at 19.2 kbps. This
configuration option only appears when Rate(Kbps) is set to 19.2.
+ 6 — For DDS network service.
0 — For alternate DDS service.
–10 — For LADS operation.
4
In TDM or MCMP mode, the DSU’s Transmit Elastic Store settings are ignored; instead, this configuration
option is selected on a per-port basis in the MUX submenu.
In Bridge mode, MUX Funct is set to CBrdg, the Transmit Elastic Store configuration options for Port 1 are
ignored (automatically disabled).