Verilink PRISM 4001 (34-00244) Product Manual - Manual (Page 28)

4-8 Terminal Operation PRISM 4001
DTE Port Parameters
When operating in the proprietary mode on 56 or 64K loops
with DTE rates as shown in section Specifications on page 1-
2 an end-to-end management link can be established between
units. When enabled, remote communications between units
operates on a sideband channel and does not disrupt the cus-
tomer’s data traffic. On a 56K loop, the maximum DTE rate
is 54K sync (57.6K async) and on a 64K loop, the maximum
DTE rate is 62K sync (57.6 async). The DTE Port Parameters
screen (Figure 4-12 on page 4-8) sets the following operating
parameters for the V.35 or RS-232 ports:
P ORT T YPE
The active port is displayed here. This reflects which port is
actively passing data. Port type is selected by slide switches
SW5 and SW6.
P ORT R ATE
Selects the DTE interface line rate. The choices are 2.4K,
4.8K, 9.6K, 19.2K, 38.4K, 54K, 56K, 57.6K, 62K, or 64K.
Refer to section Configuration Switch S1 on page 2-1. The
available choices are based on the Data Mode, the DDS
Rate, and the DTE Port Format.
P ORT F ORMAT
The 4001 can operate in two general modes, Sync and
Async (Async is allowed only in the TxPORT proprietary
mode). For more information, refer to Data Mode in section
DDS Network Parameters on page 4-7.
DSR C ONTROL
Data Set Ready is output from the 4001 to the DTE. Its
behavior can be set to TEST>OFF where DSR is ON except
when the 4001 is in test or set to FORCED ON all the time
regardless of any unit condition.
DCD C ONTROL
Output from the unit to the DTE. Its behavior can be set to
IDLE>OFF where DCD is ON except when the 4001 is
receiving idle code from the network or FORCED ON all
the time regardless of any unit condition.
RTS C ONTROL
The behavior of RTS and CTS can be set to NORMAL
where CTS follows transition of RTS or is FORCED ON all
the time regardless of any unit condition.
RTS/CTS D ELAY
Allows the user to choose the amount of delay on an RTS-
to-CTS transition. This delay can be set to NORMAL or
LONG with the following times.
NORMAL: The 4001 reacts to RTS from DTE. When RTS
is ON, the 4001 transmits data normally and turns CTS ON
(depending on the Circuit Assurance switch setting and after
the delay set by the RTS-to-CTS Delay option). When RTS
is OFF, the 4001 transmits idle code to the network and
turns CTS OFF.
Figure 4-12 DTE Port Parameters
4001 DSU x.xx/x.xx PRISM 4001 Local Screen
4001 DSU x.xx/x.xx Unit Address: X
------------------------- DTE PORT PARAMETERS --------------------------
Element: [NEAR]
Port Type: RS232D
Port Rate: [56K ]
Port Format: [SYNC ]
DSR: [FORCED ON]
DCD: [FORCED ON]
RTS: [FORCED ON]
RTS/CTS Delay: [NORMAL ]
DTR Alarm: [DISABLED ]
V.54 Loop: [ENABLED ]
LL Detect: [ENABLED ]
RL Detect: [ENABLED ]