BenQ GL2055 - Getting to know your monitor

- 7 -
3.1.7.2 Signal interface
Item
Condition
Spec
OK
N.A
Remark
Signal Cable
15-pin D-Sub
Color: Black
Length: 1800 +/- 30
mm

24-pin DVI-D
Color: Black
Length: 1800 +/- 50
mm

(GL2055 /GL2055M)
Pin assignment
15-pin D-sub
connector
See Note-1

For 15-pin D-sub
24-pin DVI-D
connector
See Note-2

For 24-pin DVI-D
(GL2055 /GL2055M)
Video input
Signal type
Separate analog R/G/B

For 15-pin D-sub
Level
700 mV (peak to peak)

Impedance
75 Ohms +/- 1.5 Ohms

Sync input
Signal type
Separate H/V-sync
Composite H/V-sync
(Positive/Negative)

For 15-pin D-sub
Level
Logic High: 2.4V ~
5.5V
Logic Low: 0V ~ 0.5V
(TTL level)

Refer to VESA VSIS
Standard V1R1
Impedance
Minimum 2.2KΩ(pull
down)

10KΩ for application
Sync Pulse Width
(SPW)
0.7μs < H-SPW
1H < V-SPW

Digital input
Level
600mV for each
differential line

Impedance
50 Ohm TDR Scan
needed for DVI cable
and interface board

Note-1: The pin assignment of 15-pin D-sub connector is as below,
Pin
Signal Assignment
Pin
Signal Assignment
1
Red video
9
PC5V (+5 volt power)
2
Green video
10
Sync Ground
3
Blue video
11
Ground
4
Ground
12
SDA
5
Cable Detected
13
H-Sync (or H+V)
6
Red Ground
14
V-sync
7
Green Ground
15
SCL
8
Blue Ground