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DIRECTV Set-top box information for the installer
DIRECTV Proprietary November 17, 2005
Version 1.1.a Page 8 of 49 DTV-MD-0058
3 Data Port Connectors
Table 3 shows what type of connector and data rate the STB data port has.
Table 3: Type of Data Port Connector
STB Model Type of Data Port Connector Data Rate (baud)
D10-100 RJ22 9600
D10-200 RJ22 9600
D10-300 RJ22 9600
D11 USB 115200
H10 RJ22 9600
3.1 Low-Speed Data Port Connector
The STB connector type will be a standard DB-9F or RJ22 (4 way/4 position jack). The pins for
the DB-9F are as shown in Figure 1. The STB will use three (3) lines (L2-Rx, L3-Tx and L5-
Grnd) for bi-directional full-duplex communications. Figure 2 shows the orientation of the RJ22
(4 way/4 position jack).
Line positions, designated as “optional”, may be provided (but are not required to be provided)
by the STB as a convenience to source a “TRUE” state to those PC serial interface lines that may
require a “TRUE” state for data transfer.