HP E1368A - Manual (Page 22)

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 “ Selecting Switch
Power” later in this chapter).
Chapter 2 Configuring the HP E1368A/69A/70A Modules 21
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