Filter
Top Products
6-25
Connectors
Signal Descriptions for SYSTEM BUS
RP_TXD, RP_RXD TXD-Pin 37 RXD-Pin 18 Output/Input
These are the rear-panel serial transmit data and rear-panel serial receive data lines.
NOTE Ground signals not listed individually here.
RP_TX_HOP Pin 28 Input
This is the rear-panel trigger signal input for hopping the RF generator (if selected).
It is used when externally addressing the hop frequencies. It is connected to the hop
controller. It can also be configured to control RF generator output pulsing
(automatic level pulsing when this trigger occurs).
You must supply signals on the rear-panel hop frequency table address input lines to
select each RF generator hop frequency for each hop trigger. Also, the hop
controller’s hop address Source field must be set to Ext.
This line is active when the hop controller’s Source field is set to Ext, the RF
generator’s hop mode is set to Hop, and the RF generator’s hop trigger is set to Arm.
Requirements Amplitude: TTL levels High drive requirement: 100 µA Low
drive requirement: 2 mA Triggered by: rising edge
See Also Screens: RFG/RFA (Hop Control) Specifications Timing
Diagrams
SEQ_TRIG_OUT Pin 9 Output
This is the sequence trigger output. It is connected to the DSP analyzer. It outputs a
positive-going pulse when an internal sequence goes through something other than
the next higher address, or when reset occurs (Hop Address Source=Int).