Specifications

Crestron DMPS-100/200/300-C/300-C-AEC DigitalMedia Presentation System
Operations Guide – DOC. 7219E DigitalMedia Presentation Systems: DMPS-100/200/300-C/300-C-AEC
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25
Connectors, Controls, and Indicators (Continued)
# CONNECTORS,
1
CONTROLS, AND
INDICATORS
DESCRIPTION
23 RELAY (1) 8-pin 3.5 mm detachable terminal block;
Comprises (4) normally open, isolated relays;
Rated 1 amp, 30 volts ac/dc;
MOV arc suppression across contacts
24 (2) for DMPS-100-C; (4) for DMPS-200-C; (6)
for DMPS-300-C: 5-pin 3.5 mm detachable
terminal blocks, comprise balanced
microphone/line audio inputs;
Balanced mic input level: -60 to 0 dBV,
1 Vrms maximum;
Balanced line input level: -31 to +11 dBV,
3.7 Vrms maximum;
Unbalanced line input level: -37 to +5 dBV,
1.85 Vrms maximum;
Mic input impedance: 3.9 kilohms, balanced;
Line input impedance: 19 kilohms balanced,
9.5 kilohms unbalanced;
Phantom power: 48 volts dc, software
enabled/disabled per channel
25 COM A–B (2) DB9 male, bidirectional RS-232 ports;
Up to 115.2 kBd, hardware and software
handshaking support for communication with
serial devices. Can also be used for modem
communications. The following table lists the
pin assignments of the serial ports.
PIN DIRECTION DESCRIPTION
1 To DMPS-
100/200/300-C
(DCD) Data Carrier
Detect
2 To DMPS-
100/200/300-C
(RXD) Receive Data
3 From DMPS-
100/200/300-C
(TXD) Transmit Data
4 From DMPS-
100/200/300-C
(DTR) Data Terminal
Ready
5 Common
(GND) Ground
6 To DMPS-
100/200/300-C
(DSR) Data Set
Ready
7 From DMPS-
100/200/300-C
(RTS) Request To
Send
8 To DMPS-
100/200/300-C
(CTS) Clear To Send
9 To DMPS-
100/200/300-C
(RI) Ring Indicator
26 NET
24 Y Z G
(4) 4-pin 3.5 mm detachable terminal blocks;
Cresnet Master ports, paralleled;
Available Cresnet power: 30 watts
24: Power (24 volts dc)
Y: Data
Z: Data
G: Ground
(Continued on following page)