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Patton electronic IM 1/F User Manual

Page 5

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3.0 CONFIGURATION

The Model IM 1/F is equipped with four DIP switches that allow

configuration of the unit to match your application. These DIP switch-
es are located on the top side of the module. Refer to Figure 3 below
for a description of the DIP switches location on the module and a
summary table detailing their settings.

The following table defines the possible configurations of the IM

1/F using the configuration DIP switch, S1. Factory defaults are in
bold-face.

Switch

On

Off

S1-1

Modem Timed

Network Timed

S1-2

Not Used

Not Used

S1-3

Clear Channel Mode

Octet Mode

S1-4

Normal Operation

Reserved for Factory
Use

NOTE: S1-4 must be “On.”

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Figure 3: Top Side of IM 1/F, Dip Switch Location

4 3 2 1

On

Off

4.0 INSTALLATION

Once the Model IM 1/F is properly configured, it is ready to install into a

PE 1090 or 1092. This section tells you how to properly connect the Model IM
1/F.

4.1 CONNECTION TO THE MODEM’S SERIAL PORT

The QuickConnect

TM

module has a 50 pin card edge connector on

one side and an RJ-45 connector on the other side. Figure 4 shows
how a QuickConnect

TM

module plugs into the back of a Patton

Electronics Model 1090 or Model 1092.

4.2 CONNECTION TO THE TWISTED PAIR INTERFACE

The Model IM 1/F supports communication between itself and a

G.703 PCM network at distances up to 4,000 feet (1219m) using 24
AWG twisted pair cable.

To function properly, the Model IM 1/F requires two twisted pairs

of metallic wire. These twisted pairs must be unconditioned, dry metal-
lic wire, between 22 and 26 AWG (0.4mm to 0.6mm diameter solid
conductors). Higher gauge wire may limit distance. Flat modular tele-
phone type cable is not acceptable.

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0 OFF

1 ON

Line

Interface Port

Figure 4. Installation of Model IM 1/F Plug-in Serial Interface Module