26
SHM-768K
Table 4-2. Indicators. (The item labels in this table correspond to
Figure 4-1.)
Item
Indicator
Function
1
PWR
Green LED is ON when power is on.
2
RTS
Yellow LED is ON when terminal activates
Request to Send.
3
TD
Yellow LED is ON when steady SPACE is being
transmitted. It flickers when data is transmitted.
4
RD
Yellow LED is ON when steady SPACE is being
received. It flickers when data is received.
5
DCD
Yellow LED is ON when a valid receive signal
is present.
6
TEST
Red LED is ON when the SHM-768K is in any
of the three loopback modes.
7
ERR
LED goes ON when PATT switch is activated
and then dims. If there are errors in the test
pattern, the LED blinks or remains ON.
