Grass Valley VM 3000 System Controllers v.7.4 User Manual
Page 94
Hardware Installation
2−22
VM 3000 Installation and Operating Manual
For those who wish to prepare their own cable: if the SCB is the old style (071 0884 xx series), build the cable as shown in
Figure 2−25; if the SCB is the new style (071 1000 xx), build the cable as shown in Figure 2−26.
1
6
Rx−
2
7
3
Tx−
8
4
9
5
to VM 3000
Serial port
DB9P
(male)
RJ45P
(male)
Rx+ Receive plus
Rx− Receive minus
Tx+
Transmit plus
Tx−
Transmit minus
G
Ground
= Shielded, twisted pair
Rx+
Tx+
G
to Encore SCB
RS−422 port
1
2
3
4
5
6
7
8
Tx−
Rx−
Rx+
Figure 2−25. Customer−supplied cable for
connecting redundant VM 3000s to old−style
redundant Encore SCBs (061 0884 xx series).
Tx+
G
G
1
6
Rx−
2
7
3
Tx−
8
4
9
5
DB9P
(male)
RJ45P
(male)
Belden 8723 or equivalent
Rx+
Tx+
G
to Encore SCB
RS−422 port
1
2
3
4
5
6
7
8
Tx−
Rx−
Rx+
Tx+
G
G
to VM 3000
Serial port