5.2 POWER-UP
There is no power switch on the Model 1060RC: Power is
automatically applied to the 1060RC when its card-edge connector
makes contact with the chassis' mid-plane socket, or when the chassis'
power supply is turned on.
Note: The 1060RC is a "hot swappable"
card—it will not be damaged by plugging it in or removing it while the
rack is powered up.
When the local and remote Model 1060RCs are
both powered up, and
are passing data
normally, the following LED conditions will exist:
• PWR = green
• TD & RD = flashing red and green
• Control In & Control Out = green
• TEST = off
5.3 TEST MODES
The Model 1060RC offers two diagnostic modes: local analog loop
and remote analog loop. These test modes are activated
simultaneously by depressing the "Test" button on the front panel of the
Model 1060RC.
Local Analog Loop
The Local Analog Loop test mode causes any data sent to the
local 1060RC by the local RS-232 device to be echoed
back to that
RS-232 device. For example, characters typed on the keyboard of a
terminal will appear on the terminal screen (see Figure 13 on the
following page). If characters are not echoed back, check the
connection between the local RS-232 device and the local 1060RC. All
1060RCs in the system should be tested in this manner.
Remote Analog Loop
The Remote Analog Loop test mode causes any characters sent
from the
remote 1060RC to the local 1060RC to be returned back to the
remote device (see figure 13 on the following page).
Note: Only the
local 1060RC should be in "test" mode.
The remote 1060RC should
be in "normal" operating mode or this test will not work. If no characters
are echoed back, check the wiring between the two 1060RCs. Be sure
to wire the units according to the instructions in section 4.0.
17
18
Figure 13.
Normal operating mode vs. loopback test mode
RD
TD
TD
RD
Local 1060RC
In Normal Mode
Remote 1060RC
In Normal Mode
TX+
TX-
RX-
RX+
RX+
RX-
TX-
TX+
RD
TD
TD
RD
Local 1060RC
In Loopback Mode
Remote 1060RC
In Normal Mode
RX+
RX-
TX-
TX+
TX+
TX-
RX-
RX+
