5.0 OPERATION
Once the 1184 or 1185 is properly configured and installed, it
should operate transparently. This sections describes power-up,
reading the LED status monitors, and using the built-in loopback tests.
5.1 POWER-UP
To apply power to the Model 1184/1185, first be sure that you have
read Section 4.3, and that the unit is connected to the appropriate
power source. Then power-up the unit using the rear power switch.
5.2 LED STATUS MONITORS
The Model 1184 and 1185 feature eight front panel LEDs that
monitor power, the DTE signals, network connection and test modes.
Figure 6 (below) shows the front panel location of each LED. Following
Figure 6 is a description of each LEDs function.
TD & RD
Glows red to indicate an idle condition of Binary
“1” data on the respective terminal interface signals.
Green indicates Binary “0” data.
RTS
Glows green to indicate that the Request to Send
signal from the DTE is active.
CD
Glows red if no carrier signal is being received from
the remote modem. Green indicates that the remote
modem’s carrier is being received.
DTR
Glows green to indicate that the Data Terminal
Ready signal from the terminal is active.
ER
Glows red to indicate the likelihood of a Bit Error in
the received signal.
TM
Glows red to indicate that the Model 1185 has
been placed in Test Mode. The unit can be placed in
test mode by the local or remote user. For RDL, the
TM LED will only glow red on the local unit.
NS
Glows red to indicate that the local Model 1184/1185
has not yet connected with the remote 1184/1185.
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4.3.2 Connecting to a DC Power Source
The 48 VDC power supply option uses a 3-pin terminal block with
spring-type connectors. Please refer to the Model 1090 Series Service
Manual.
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Figure 6. Model 1185 Front Panel
Model 1185
High Speed Single Fiber Modem
RD
TD
RTS
CD
DTR
ER
NS
TM
TEST MODES
- Remote
- Normal
- Local
WARNING!
There are no user-serviceable parts in the power
supply section of the Model 1184/1185. Voltage setting changes
and fuse replacement should only be performed by qualified
service personnel. Any questions may be answered by
contacting Patton Electronics Technical support at (301) 975-
1007; [email protected]; or http://www.patton.com.
