Grass Valley VM 3000 System Controllers v.7.4 - Manual (Page 95)

Hardware Installation
2−23 VM 3000 Installation and Operating Manual
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 2−26. Customer−supplied cable for
connecting redundant VM 3000s to new−style
redundant Encore SCBs (061 1000 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
Software Configuration (Redundant Systems)
Software configuration for redundant systems is much the same as that already described for non−redundant systems (page
2−20), except that two VM 3000s and two VM serial ports are configured.