40 main keyboard port, 41 spot keyboard/cascade port, Main keyboard port – Videoswitch Vi-M series User Manual
Page 50: Spot keyboard/cascade port, Digital recorder, Pin1 pin8
Digital Recorder
1.1.40
Main Keyboard Port
Physical:
RJ45 (lower connector)
PIN1
PIN8
Electrical: RS485
Pin Number
Signal
1 RS485
Input+
(A)
2
RS485 Input- (B)
3
RS485 Output+ (A)
4
+9V output for Keyboard
5 GND
6 RS485
Output-
(B)
7 Twisted-Pair
Video+
8 Twisted-Pair
Video-
Note:
A standard CAT5 patch cable may be used to connect the M-series DVR to the optional Vi-
K1, Vi-K2 or Vi-K3 keyboard.
1.1.41
Spot Keyboard/Cascade Port
Physical: RJ45
(upper
connector)
PIN1
PIN8
Electrical: RS485
Pin Number
Signal
1 RS485
Input+
(A)
2
RS485 Input- (B)
3
RS485 Output+ (A)
4
+9V output for Keyboard
5 GND
6 RS485
Output-
(B)
7 Twisted-Pair
Video+
8 Twisted-Pair
Video-
Note:
A standard CAT5 patch cable may be used to connect the M-series DVR to the optional Vi-
K1, Vi-K2 or Vi-K3 keyboard.
This port may be configured as a cascade port for linking to the Main keyboard port of
another DVR. In this case a CAT5 cross-over cable is used.
44