Interlogix NVR 21 (S/P) User Manual - Manual (Page 15)

Chapter 2: Installation
TruVision NVR 21(S/P) User Manual 9
Figure 5: RS-485 pins
RS-232 port
Use the RS-232 port to connect CBR-PB3-POS (point-of-sale) and ATM devices to the
recorder.
PoE ports
Connect up to eight or 16 IP cameras to the embedded PoE ports depending on the
TVN 21S model.
Monitor connections
Connect the unit to a monitor via a 75-ohm video coaxial cable with the BNC connector.
The unit provides a 1 Vp-p BNC signal. See Figure 1 on page 5 for connecting a
monitor to a recorder.
The recorder supports at least 1024 × 768 / 60 Hz resolution in VGA. Adjust your
monitor accordingly to this resolution.
Audio inputs and output
The unit is equipped with 1 audio input and two audio outputs. Both the audio input and
the audio outputs are line-level
Audio input RCA jack, 315 mV, 40 kohms. Unbalanced
Audio output RCA jack, 315mV, 600 ohms. Unbalanced
Note: Line-level audio requires amplification.