ADTRAN specifications Block Diagram of the Quad BNC Adapter Module

Figure 2 is a block diagram of the Quad BNC Adapter Module for Total Access 3000 and Total Access 3010.

Receive (1)

Input

(BNC)

Splitter

Pin 1 RX to MUX A (EC-1 #1)

R-Term

Pin 22 RX to MUX B (EC-1 #1)

Receive (2)

Input

(BNC)

Transmit (1)

Output

(BNC)

Transmit (2)

Output

(BNC)

Splitter

R-Term

R-Term R-Term

Pins 2, 4, 5, 6 (A RX Gnd)

Pins 18, 19, 21 (B RX Gnd)

20Pin 20 RX to MUX B (EC-1 #2)

3Pin 3 RX to MUX A (EC-1 #2)

Pin 8 TX from MUX A (EC-1 #1)

Pin 15 TX from MUX B (EC-1 #1)

Pins 7, 9, 11, 12 (A TX Gnd)

Pins 14, 16, 17 (A TX Gnd)

Pin 10 TX from MUX A (EC-1 #2)

Pin 13 TX from MUX B (EC-1 #2)

Figure 2. Block Diagram of the Quad BNC Adapter Module

2 61181007L2-5A