Rose Electronics Porter User Manual

Page 23

PORTER INSTALLATION AND OPERATIONS MANUAL

Front Panel
The front panel is useful for observing the status of the Porter and manually changing the

port selection.
The front panel switches, labeled SELECT and ADVANCE are used to manually change

modes and port selection as described in the section on operating modes. They may be

disabled or enabled under program control

(see “Commands”).
The front panel LEDs are in two groups, the status LEDs and the port select LEDs. The

port select LEDs display the currently selected ports as long as the error light is not lit.

The status LEDs consist of Power, Mode, Data, Busy, and Error. The PORT SELECT LEDs

display the current connection between the master port and the peripheral ports. The

POWER LED is lit when power is connected to the unit and the on/off switch is in the on

position. The MODE LED displays the current mode that the Porter is in. When the LED

is lit the unit is in the manual mode, when it is dark the unit is in the normal mode. If it is

on along with the DATA and BUSY LEDs, the unit is in the configuration menu. The DATA

LED displays the presence of data being sent across the selected port. When illuminated

data is being transferred across the selected port connection. The BUSY LED displays

the state of the flow control of the selected port. When it is illuminated it indicates that

the flow of data has been inhibited across the selected port connection. The ERROR LED

displays any data receive errors encountered on serial ports and reflects the state of the

ERROR pin within the connected port on parallel ports.

Table IV LED Operation Display

Legend: M=Mode LED D=Data LED B=Busy LED E=Error LED

= LED off

= LED on

X + may vary, described below

M D B E

6 7

Note 1

Note 2

Note 3

X X X Note 4

Note 5

Note 1 . . . . . . Unit operational, connected to port 1

Note 2 . . . . . . Unit operational, null destination mode set

Note 3 . . . . . . Unit operational, in broadcast mode with all ports enabled

Note 4 . . . . . . Unit is in manual mode, displays current port connected

Note 5 . . . . . . Unit is in configuration (setup) mode