Installing the New
QuikConnect™ Module
1) Make sure the power switch is off. Leave the power cord
plugged into a grounded outlet to keep the unit grounded.
2) Hold the module with the faceplate toward you and align the
module with the guide slots in the rear panel of the Model
2530.
3) While keeping the module’s faceplate parallel with the Model
2530 rear panel, slide the module straight in–so that the card
edge contacts line up with the socket inside the chassis.
NOTE: The card-edge connector should meet the socket when
it is almost all the way into the chassis. If you encounter much
resistance, remove the module and repeat steps 2 & 3.
4) With the card edge contacts aligned with the socket, firmly seat
the module by using your thumbs to apply pressure directly to
the right and left edges of the module faceplate. Applying mod-
erate and
even pressure should be sufficient to seat the mod-
ule. You should hear it “click” into place.
5) To secure the module in place, push the thumbscrews into the
chassis and turn the screws clockwise to tighten.
4.1.2 Connection to a “DTE” Device
The serial port on most
QuikConnect™ interface modules (all
except the X.21 module) is hard-wired as a DCE. Therefore these
modules “want” to plug into a DTE such as a terminal, PC or host.
When making the connection to your DTE device, use a straight
through cable of the shortest possible length—we recommend 6 feet
or less. When purchasing or constructing an interface cable, please
refer to the pin diagrams in Appendix C as a guide.
4.1.3 Connection to a “DCE” Device
If the Model 2530’s
QuikConnect™ interface module is hard-wired
as a DCE (all except the X.21 module), you must use a
null modem
cable when connecting to a modem, multiplexer or other DCE device.
This cable should be of the shortest possible length—we recommend 6
feet or less. When purchasing or constructing a null modem interface
cable, use the pin diagrams in Appendix D as a guide.
NOTE: Pin-out requirements for null modem applications vary
widely between manufacturers. If you have any questions about a
specific application, contact Patton Technical Support.
21
4.1.4 Configuring the X.21
QuikConnect™ Module
The serial port on the X.21
QuikConnect™ Module is default wired
as a DCE, but may be switched to a DTE. This is done by reversing
the orientation of the DCE/DTE strap, as described below:
To reverse DCE/DTE orientation, remove the module according to
the instructions in Section 4.1.1. The DCE/DTE strap is located on the
bottom side of the module’s PC board. The arrows on the top of the
strap indicate the configuration of the X.21 port (for example, if the
DCE arrows are pointing toward the DB-15 connector, the X.21 port is
wired as a DCE). Reverse the DCE/DTE orientation by pulling the
strap out of its socket, rotating it 180
º
º, then plugging the strap back into
the socket. You will see that the DCE/DTE arrows now point in the
opposite directions, showing the new configuration of the X.21 port.
Re-install the module according to the instructions in Section 4.1.1.
4.2 CONNECTING THE TWISTED PAIR INTERFACE
The Network Interface is an 8 position modular connector. Connect
this port to the RJ-48S jack provided by the digital data service
provider. If the Model 2500 Series is being used for private short haul
communication, the twisted pair cable will connect to this port. See
Appendix C for the pin assignments of this connector.
The RJ-48S connector on the Model 2530’s twisted pair interface is
pre-wired for a standard TELCO wiring environment. The signal/pin
relationships are shown in Figure 4 below.
22
Figure 4. Model 2530 twisted pair line interface.
1 (TX+)
2 (TX-)
3 (N/C)
4 (N/C)
5 (N/C)
6 (N/C)
7 (RX+)
8 (RX-)
1
2
3
4
5
6
7
8
