146 Options List
C.14.5 Performance
Accuracy: ±50 ns from 1 PPS, max (−10 ns, typical)
Jitter: 1 ns rms, max. pulse to pulse (guaranteed by design, not production tested)
C.14.6 Outputs
Connectors: Four, BNC 50-ohm, configurable
Signals: Normal Polarity COMTRADE Sample Rate, 50% Duty Cycle
Complemented COMTRADE Sample Rate, 50% Duty Cycle
All 21 Other Signals Available in 1088B or 1084A/B/C Clock
C.14.7 Drive Capability
Digital: 5 V CMOS Buffer, 50 Ohms Impedance
Analog: Op amp Buffer, 600 Ohms Impedance
C.14.8 Setup
Setup Menu
The SETUP menu allows the user to modify internal operating firmware parameters within both
the Model 1084A/B/C and Model 1088A/B. The SETUP menu can be easily accessed from the
front panel keyboard.
The Option 23 SETUP menu is illustrated in Figure C.15 for the standard clock Model 1084A/B/C.
Figure 5-2 illustrates the standard Model 1088A/B SETUP menu. However, for clarity only Option
23 is described.
RS-232C Commands
Option 23 can also be configured via the RS-232C interface using one of the following commands:
Configure Option 23
Command: m:rCA, m:rCB
m:rCA configures Option 23 to operate correctly from Option Slot A in the Model 1084A/B/C, or
from the Model 1088B. m:rCB configures Option 23 to operate correctly from Option Slot B from
the Model 1088B only.
Response:
C
Where:
m 0 = 50 Hz
1 = 60 Hz
r see Table C.6 or Table C.7 for SAMPLES/CYCLE number.
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