Grass Valley NV8288 v.1.5 - Manual (Page 42)

32 Rev 1.5 • 24 Sep 09
3. Installation
Making Power Connections
How to Connect Two NV8000 Power Supplies for Monitoring
1 Facing the rear of one of the two NV8000, connect one end of the monitor cable (WC0046) to
the ‘PS Frame 2 Monitor’ DB25 connection, as shown in Figure 3-5 on page 30.
2 Facing the rear of the remaining NV8000, make a loop-through connection using the other end
of the monitor cable (WC0046) to the ‘PS Frame 2 Monitor’ DB25 connection, as shown in
Figure 3-5 on page 30.
Creating a “Y” Monitor Cable
A “Y” monitor cable is required when connecting two routers to a single NV6257. A “Y” cable has
one connector at one end and then splits into two separate connectors on the other end, creating a
“Y.” To create a monitor “Y” cable you need:
• Three male DB25 connectors
• Two standard DB25 straight-through cables with 25 circuits
Wire the pins on the DB25 connectors as listed in the following table. To ensure that the correct
connector is inserted in the corresponding connection, it is recommended that each connector be
labeled.
DB25
Pin NV6257
Connector
Router 1 Connector Router 2 Connector
20 PS_TACH PS_TACH PS_TACH
21 PS_ALARM1 PS_ALARM1 PS_ALARM5
19 PS_ALARM2 PS_ALARM2 PS_ALARM6
18 PS_ALARM3 PS_ALARM3 PS_ALARM7
17 PS_ALARM4 PS_ALARM4 PS_ALARM8
16 PS_ALARM5 NC NC
15 PS_ALARM6 NC NC
23 PS_ALARM7 NC NC
22 PS_ALARM8 NC NC
8 TEMP1 TEMP1 TEMP5
6 TEMP2 TEMP2 TEMP6
5 TEMP3 TEMP3 TEMP7
4 TEMP4 TEMP4 TEMP8
3 TEMP5 NC NC
2 TEMP6 NC NC
10 TEMP7 NC NC
9 TEMP8 NC NC
11 GND GND GND
12 GND GND GND
13 GND GND GND
14 GND GND GND