Digi PortServer II User Manual

Page 48 Installation 90030500B
Wiring Ports for Specific Devices
The table below summarizes the characteristics of and wiring requirements for the
device types available on PortServer II.
Detailed explanations of these functions are given below.
Note:
Device types (
dev=xxx
) are set with the
set ports
command, as described
in the
Function Reference Guide
. Procedures are also given in later chapters
of this
User’s Guide
.
dev=host
(Computer or other devices)
Use this device type for connecting another computer to a serial port. A typical use
might be connecting a bulletin board system (BBS) to the Ethernet through the
PortServer II. DCD and DTR must be cross-connected between the PortServer II and
the BBS server.
When the server raises DTR to signal that it can receive calls, the PortServer II sees
DCD go high. It then allows incoming connections from the Ethernet through the
serial connection to the server. When an incoming connection is requested, PortServer
II raises DTR, and the server sees DCD go high, indicating there is a call. (This
sequence mimics a modem answering a dial-up call.)
Device
Type
DTR + RTS
when idle
Spawn Login
Remote Connect
allowed
Action when
DCD drops
term
high data no ignore
prn
low never yes ignore
host
low never if DCD hang up
hdial
low DCD + data no hang up
hio
low DCD + data if DCD hang up
min
high DCD raises no hang up
mout
low never yes hang up
mio
high DCD raises yes hang up

Digi PortServer II Specifications

General

Brand	Digi
Model	PortServer II
Category	Server
Language	English