After selecting the coaxial switch, install as follows:
1.Position the coaxial switch behind the channel 00 panel cut-out. Secure to rear panel using two M2.5 x .45 metric screws
(P/N 0515-1373).
2.Route the 3-wire cable (P/N E1368-61601) from J1 to the coaxial switch terminals. Solder the "RED" wire to pin 1. Solder the "YEL" wire to pin C. Solder the "ORN" wire to pin 2.
Note On the HP 33314 (8765) series switches, it is necessary to jumper the two C terminals so that both connect to the "YEL" wire.
3.Repeat steps 1 and 2 with remaining coaxial switches. The channel 01 switch connects to J2 connector, and channel 02 connects to J3.
Caution Do not leave an unused 3-wire cable installed in J1, J2, or J3 if a coaxial switch is not installed. The center conductor of all three connectors is connected to the switch operating voltage at all times. Contact of this conductor to ground may cause the fuse to open, or damage to the power supply or module.
4.Route the 3-wire cables behind the coaxial switches as not to catch or snag on any objects during module installation in the mainframe or control module (see Figure 2-3).
5.Select correct switch operating voltages (see “ Sele cting Switch Power” later in this chapter).
Chapter 2 | Configuring the HP E1368A/69A/70A Modules 21 |
