Leitch DVR-3901 Neo, Installation And Operation Manual, Page: 93 / 112

DVR-3901 Installation and Operation Manual 77
Chapter 6: Specifications
Hard Drive
RS-422
Note
In Europe and Asia the 2.5 in.
(6.35 cm) hard drive is
described as 9.5 mm.
Note
Older versions of DVR-3901
shipped with two 40 GB hard
drives.
Table 6-11. Hard Drive
Item Specification
Hard drive installed 2 x 80 GB 2.5 in. (6.35 cm) IDE
Hard drive model
See
the Leitch Web site or contact your
service representative for a list of certified
hard drive models
Table 6-12. RS-422
Item Specification
Protocol Sony/Odetics subset
Connector DB-9
Standard TIA/EIA-422-B
Input impedance >4 k
Ω
Input common mode voltage ±7 V
Maximum input amplitude 10V common, 12V differential
Output impedance <100
Ω
Output amplitude 2 to 10 V
Output short current <150 mA
Output power-off leakage
current <100 µA
Output rise/fall time <0.1 UI or 20 ns
Output overshoot <10%