Agilent Technologies 8935 series e6380a manual Data

Connectors

Connectors

	DATA IN
	This connector provides a data input to the CDMA generator.
	Operating Considerations
	Input level = TTL
	Input impedance = 50k Ω
	Data Rate = 1.2288 Mcps
	DUPLEX OUT
	This connector is an output for the RF generator, CDMA generator and tracking
	generator.
	Operating Considerations
	Output impedance = 50 Ω
	The RF generator’s output is selected in the Output Port field. This field is available on
	the RF GENERATOR, CDMA GENERATOR, and SPEC ANL screens.
CAUTION	Connecting a signal of >60 mW (17.78 dBm) to the DUPLEX OUT port can cause
	instrument damage (although internal protection circuits can typically withstand a
	short-duration signal of several Watts).
	If the overpower circuit is triggered (signified by a warning message at the top of the
	screen), remove the signal from the DUPLEX OUT port, and reset using Meas Reset
	(press and release the Shift key, then the Hold key) or turn the Test Set off and on to reset
	it.
	EVEN SECOND SYNC IN
	This port is an input for the even second clock from the base station under test. A
	positive edge on this connector starts two timers. One timer, after reaching terminal
	counts, starts CDMA frame clocks. The other timer starts pilot PN sequence generation.
	The Even Sec In field on the CDMA GENERATOR screen controls this port. See “Even
	Sec In” on page 158.
	Operating Considerations
	Input impedance = 50 kΩ
	Input level range = TTL

286 Chapter 9