Verilink PRISM 3030 (34-00208.L) Product Manual - Manual (Page 41)

DTE Port Configuration 31
Port Rate Selects the required port bit rate for RS-232 operation. The None option disables
all operations for this port.
DS0 Channel
Assignment
CONTIGUOUS is the only option available for RS-232 operation.
CTS /DSR /DCD
Control
The control leads on the RS-232 port function as explained in the following
paragraphs.
DSR Control
Can be set to Force True, Force False, or Internal. The Internal option has DSR
ON if the port is enabled and OFF if it is disabled.
DCD Control
Can be set to Force True or Internal. If set to Internal, DCD is ON when data is
being received from the remote end and is OFF when idle code is being received
from the far end. Setting to Force True keeps DCD ON regardless of whether data
or idle code is being received.
CTS Control
Can be set to Force True or Internal. The setting of CTS Control has an effect on
both the CTS control lead presented to the DTE and on the transmit data from the
DTE toward the remote end.
If set to Internal the CTS control lead follows the RTS control lead from the DTE
after a delay of 21 UI (±1 UI). The data transmitted to the remote end is also
determined by the state of the RTS control lead. When RTS is ON, the transmit
data from the DTE is sent to the remote end, and when RTS is OFF, idle code is
sent to the remote end. If set to Force True the CTS control lead is always ON and
the RTS control lead from the DTE is ignored. Thus the transmit data from the
DTE is always sent through to the remote end.
Port 1/Port 3
Configuration Menu
Port
Rate
DS0
Channel
Assign.
CTS
Control
DCD
Control
None
1200 bps
2400 bps
4800 bps
9600 bps
14400 bps
Contiguous Internal
Force
True
Internal
Force
True
19200 bps
28800 bps
38400 bps
48000 bps
56000 bps
64000 bps
Figure 3-13 RS-232 Modifications to DTE Port Menu