4x1 HDTV Switcher
Operation Manual
CHDD-41AR
Pins definition of modem cable
Command Code
"I" + "1"
PORT 1 ON
"I" + "2"
PORT 2 ON
"I" + "3"
PORT 3 ON
"I" + "4"
"P" + "1"
"P" + "0"
POWER ON
POWER OFF
Comment
PORT 4 ON
CHDD-41AR RS-232 Remote Control Protocol
* The connection between CHDD-41AR and remote controller with RS-232 modem cable.
* RS-232 transmission format:
Baud Rate : 9600 bps
Data Bit : 8 Bits
Parity: None
Stop Bit: 1 bit
* Command :
CHDD-41AR
PIN
1
2
3
4
5
6
7
8
9
Definition
NC
T xD
R x D
NC
GND
NC
NC
NC
NC
PIN
1
2
3
4
5
6
7
8
9
Definition
NC
R xD
T x D
NC
GND
NC
NC
NC
NC
Remote Controller
Remote Control
1
2
3 4
5
1. Power: Switch between power ON and Standby.
2. Press button 1 to select source 1.
3. Press button 2 to select source 2.
4. Press button 3 to select source 3.
5. Press button 4 to select source 4.
Note: Replacement battery can be found
at a local electronic retail store.
Specifications:
- Input:
YUV(YPbPr) x 4 via 3 RCA connectors 1 Vp-p @ 75 ohm
Composite Video x 4 via RCA connectors 1Vp-p @ 75 ohm
S/PDIF (Digital format) x 4 via coaxial connectors, 0.5~1 Vp-p@75 ohm load.
Stereo L/R(Analog format) x 4 via 2 RCA connectors
- Output:
YUV (YPbPr) x 1 via 3 RCA connectors 1 Vp-p @ 75 ohm
Composite Video x 1 via RCA connectors 1 Vp-p @ 75 ohm
S/PDIF (Digital format) x 1 via coaxial connector, 0.5~1 Vp-p@75 ohm load.
Stereo L/R (Analog format) x 1 via 2 RCA connectors
- Bandwidth: 650MHz (-3dB)
- RS-232 interface control via DB-9 female connector
- Infrared remote control sensor via remote control unit.
- Differential gain: 0.05%
- Differential phase: 0.05% degree
- Power consumption: 5W(max.)
- Dimensions: 292(W) x 176(D) x 47.5(H)mm
- Unit weights: 1.5Kgs
Pull out the tab to
activate battery
3