Specifications

Net-2000™ VCU Users Manual
Version 4.0, December, 2013
(Subject to Change) Page 61
VCU Specifications
Digital Voice Systems, Inc.
The Speech Compression Specialists
7 VCU Specifications
This section contains hardware Specifications of the VCU. Any interfaces listed as “inactive”
require firmware and software upgrades to activate. NOTE: All values are typical unless noted otherwise.
All specifications subject to change.
7.1 Rear Panel Connections
Serial Port
Type RS-232
Connector DE9s
Net-2000™-VCU RS 232 Serial Port Pin Out
(as view from the back of the unit)
Pin Number Name
1, 4, 6 Connected together internally
2 Tx
3 Rx
5 Ground
7 CTS
8 RTS
9 No Connection
Table 55 Serial Port Pin Outs
LAN
Type 10-BaseT Ethernet
Connector RJ-45
RS-422 Synchronous
Type RS-422 differential
Connector DB-15HD
Net-2000™-VCU RS 422 Synchronous Serial Port Pin Out
(as view from the back of the unit)
Pin Number Description Polarity
1 CLK_RX negative
2 CLK_RX positive
3 FS_RX positive
4 RX positive
5 CLK_TX negative
6 FS_TX negative
7 TX negative
8 GND
9 NC
10 FS_RX negative
11 RX negative
12 GND
13 CLK_TX positive
14 FS_TX positive
15 TX positive
Table 56 RS-422 Synchronous Serial Port Pin Outs
DV
SI CONFIDENTIAL PROPRIETARY