94
GSR2600
Appendix A
GSR2600 Specifications
Input/Output Data Interface
Electrical format
EIA/TIA-232-E
EIA/TIA-232-E
Baud Rate
4800, 9600, 19200, 57600, 115200 bps (9600 bps default)
Signals supported
TX, RX, RTS, CTS, DCD
Input/Output Strobes
PPS Output *
A one-pulse-per-second time synchronization output. This
is a normally high, active low pulse (1 ms ± 50 ns) where
the falling edge is the reference.
Mark Input *
An input mark (negative pulse > 55 ns), time tags output
log data to the time of the falling edge of the mark input
pulse.
The electrical specifications of the strobe signals are as follows:
Output
Voltage: Standard TTL levels
Sink Current: 64 mA
Source Current: 15 mA
Input
Voltage: Standard TTL levels
Current:
≤
5mA
Classifications
FCC and CE
Complies with the radiated and conducted emission limits
for a Class B digital device, for both CISPR 22 and Part 15
of the FCC rules. For full details see GSR2600 FCC and
CE Notice on Page 2.
a. Accuracy depends on number of satellites visible, obstructions, satellite
geometry (DOP), occupation time, multipath effects, atmospheric conditions,
baseline length, survey procedures, and data quality. 95% confidence level.
Baseline not exceeding 10Km (except for Static survey type).
b. With Base/Rover sharing at least 6 common satellites > 14
°
elevation, lock
times > 3 min and GDOP < 4. Base station using choke-ring antenna, and
Rover station using supplied dual-frequency antenna (SK-600). Typical
multipath, ionospheric, and tropospheric errors. Baseline not exceeding 10Km.
For RTK rapid logs, not greater than 1 sec. correction latency.
*
Additional cable required. Ask your dealer for a Command Descriptions
Manual.
GSR2600 SPECIFICATIONS
750-1-0093 Rev 1.book Page 94 Friday, June 28, 2002 4:02 PM
