F Igure 20 Rs-422 A Synchronous P In 1; Audio I/O Connections; Rs-422 A - Digital Voice Systems Net-2000 User Manual

Net-2000™ Voice Codec Unit
User's Manual
Table 56 RS-422 Syncronous Serial Port Pin Outs
RS-422 Asynchronous
Type
Connector
Figure 20 RS-422 Asynchronous Pin 1
Two Net-2000™ VCU units can be connected together using the RS-422 Asynchronous
connection and a crossover CAT5 cable.
Net-2000™ VCU RS 422 Asyncronous Serial Port Pin Out
Pin Number
1
2
3
4
5
6
7
8
Table 57 RS-422 Asyncronous Serial Port Pin Outs

Audio I/O Connections

2-Wire
Analog 2 Wire
Type:
Connector:
Input /Output Impedance:
Bandwidth:
A/D,D/A Resolution:
A/D,D/A Sampling Rate:
Line In
Type
Connector
Maximum Input Level:
Input Impedance
Bandwidth
D/A Resolution
D/A Sampling Rate
DVSI Confidential Proprietary
RS-422 differential
RJ-45
Pin 1
(as view from the back of the unit)
Description
Tx
Tx
Rx
NC
NC
Tx
NC
NC
Input / Output:
Deferential
RJ-11 6P2C
600 Ohms
300 Hz to 3300 Hz
16 bits
8 kHz
Single-ended 4 Wire Input
female RCA
+/- 2.45 Volts
10 kOhms
20 Hz to 4 kHz
16 bits
8 kHz
Section 3 – Net-2000™ VCU Control
Polarity
positive
negative
positive
negative
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