Comtech EF Data SDM-300L3 - Manual (Page 59)

SDM-300L3 Satellite Modem Revision 1
Connector Pinouts MN/SDM300L3.IOM
3–5
3.2.3 Data I/O Interface Connector (J8)
The Data I/O interface connector conducts data input and output signals to and from the
modem, and connects to the customer’s terrestrial equipment, breakout panel, or protection
switch. The modem is currently available with a choice of four Data I/O connectors, as
follows:
• 25-pin D connector is the standard connector shipped with a base platform
modem.
• 50-pin D connector is the standard connector when the modem is ordered with
the optional overhead PCB or if the overhead PCB has been installed in the field.
• 50-pin D that can be ordered with the basic modem, but it does not include the
Overhead Card. This is used with breakout panels and switches.
• 37-pin D is an alternate connector available upon special request for the base
platform modem.
• 34-pin Winchester is an alternate connector available upon special request for the
base platform modem.
• G.703 T1, E1/ASYNC Interface Adapter is an alternate connector available
upon special request for the basic platform modem.
• Eurocom Interface – Refer to Chapter XXXX.
The Data I/O pinout is different for each of the interface configurations. For pinout
information, refer to the appropriate table as follows:
Standard: 25-pin D connector Table 3-4
Optional: 34-pin Winchester connector Table 3-5
Optional: 37-pin D connector Table 3-6
Optional: 50-pin D connector Table 3-7