Configuring PAD/ATPAD Ports 7
PAD Port Configuration
Configuring the PAD Port
Introduction
This section describes the PAD port parameters. Any parameter with an asterisk (*)
requires a Node boot.
Parameters
From the PAD port record, you can configure these parameters:
Connection Type
Range: SIMP, DTR, DTRD, DTRP, DIMO, DIMOa, DIMOb, EMRI,
EMDC, EMCDIO
Default: SIMP
Description: Specifies the type of control signal handshaking that is required
before logical connections can be made to this port. See the
table below for information about when to use a connection
type.
Use Connection Type
When...
SIMP (Simple) A terminal is wired to the port with a cable that has a
minimum of conductors (so most control signals are
missing). Such cabling provides only ground,
transmit, and receive data. Control signals from the
port are maintained high. If data restraint by control
signal is enabled, the CTS lead changes as required.
DTR The device connected to the port provides DTR to
maintain the EIA connection. Remote users calling
the device through a PAD port know if the device is
disconnected or powered down, because the call is
not completed.
DTRD DTR signal required. DCD, DSR, CTS drop for 1
second between calls and then return to idle state.
During the control signal drop, the port is unable to
receive calls.
DTRP • DTR is passed end-to-end.
• Port raises CTS and DCD when it raises DSR.
The port does not monitor RTS.
• EIA Monitor supports DTRP.
• DTRP doesn’t support PVC connections.
• Configure PAD ports as an answer/originate pair
by selecting auto calling on the originate end.
• Supports primary handshaking only (DTR/DSR)
and should not be used with tail circuit modems.
