Pelco CM9740-UPG-8312 User Manual
14
C1547M (7/03)
CONNECTING AN ACD DB9 PORT TO A CM9740-CC1 RJ-45 PORT
To connect an ACD DB9 port to a CM9740-CC1 RJ-45 port, refer to Figure 6 and do the following:
1.
Connect the 9-pin side of the PV130 converter to a DB9 port of the ACD.
2.
If necessary, connect a +12 VDC power supply to the PV130 converter; otherwise, proceed to step 3. (The power supply
allows the PV130 converter to communicate serial port data over wire pairs for distances up to 4,000 feet [1,219 m] on
the RS-422 side.)
allows the PV130 converter to communicate serial port data over wire pairs for distances up to 4,000 feet [1,219 m] on
the RS-422 side.)
a.
Connect the black and white striped wire from the power supply to the +12 VDC terminal on the converter.
b.
Connect the solid black wire from the power supply to the GND terminal on the converter.
3.
Connect RX+ on the converter to terminal 8 (RX+) on the wall block.
NOTE: The numbering of the screw terminals on the wall block shown in Figure 6 applies to the Pelco RJ-45 wall block. A
wall block purchased from a supplier other than Pelco may have a different numbering scheme.
wall block purchased from a supplier other than Pelco may have a different numbering scheme.
4.
Connect RX- on the converter to terminal 7 (RX-) on the wall block.
5.
Connect TX+ on the converter to terminal 1 (TX+) on the wall block.
6.
Connect TX- on the converter to terminal 2 (TX-) on the wall block.
7.
Connect the wall block to an RJ-45 port of the CC1 using an RJ-45 reversed cable.
5 6 7 8 9 10 11 12
13 14 15 16 17 18 19 20
CM9740-CC1
PIN 1 = TX+
PIN 2 = TX-
PIN 7 = RX-
PIN 8 = RX+
REVERSED CABLE CONNECTIONS
WALL BLOCK
RJ-45
CONNECTOR
CM9740-CC1
RJ-45
CONNECTOR
PIN 1 = TX+
PIN 2 = TX-
PIN 7 = RX-
PIN 8 = RX+
RS-422
REVERSED
CABLE
PV130
TX-
TX+
RX
-
RX
+
GND
+12
VD
VD
C
1
2
3
4
8
7
6
5
+12 VDC
GND
+12 VDC POWER SUPPLY
(IF NECESSARY)
(IF NECESSARY)
ACD MALE
DB9 SERIAL
PORT (RS-232)
DB9 SERIAL
PORT (RS-232)
WALL
BLOCK
BLOCK
Figure 6. ACD DB9 to CM9740-CC1 RJ-45 Connection