Specifications

30 System Overview
Communication with the DTC04 Module
The TLI communicates with the DTC04 module through the Intel SLD
interconnect. The SLD interconnect is a serial bus that sends 32 bits in
each direction every 125 microseconds. The 32 bits are divided into four
8-bit bytes: the primary voice and data byte, the secondary voice and data
byte, the control byte, and the signalling byte. The voice and data bytes
contain the actual voice data sent and received over the telephone line.
DECvoice does not use both the primary and secondary bytes, only one or
the other. The control byte programs how the SLD components operate.
The signalling byte controls the reading and writing of network signalling.
2.4 Specifications
This sections lists the specifications for the DTC04 module.
DTC04 Voice Module Dimensions
Height 25.8 centimeters (10.5 inches)
Length 20.6 centimeters (8.4 inches)
Width 1.0 centimeters (0.4 inches)
TLI Assembly Dimensions
Height 12.9 centimeters (5.25 inches)
Length 8.3 centimeters (3.38 inches)
Width 3.1 centimeters (1.25 inches)
Electrical Power Requirements
Volts Amperes
+5 3.80
+12 0.05
Bus Loading
AC DC
3.2 0.5