Leica GM30 User Manual page 69

Serial ports
Data output
USB client port
USB host port
External oscillator
Ethernet network
interface
Simple Network
Management
Protocol (SNMP)
GR30/GM30/GR50, Technical Data
Port
P1
P2 (GR50 only)
• Raw Data
• Almanac
• Ephemeris
• Position data
Support:
Speed:
GR50 only:
Support:
Speed:
Output power:
Frequency:
Input impedance:
Input VSWR:
Signal level:
Frequency stability:
Wave shape:
Connector:

On the GR30/GM30/GR50, remove the External oscillator port cover before
connecting the cable.

Internal Oscillator aligned to GPS time within 20 ns.
All receivers
IEEE Standards:
Link Speed:
Protocol:
Connector:
SNMP is an Internet-standard protocol for managing devices on IP networks. It can be
used in network management systems to monitor receivers for conditions that
warrant administrative attention. It can also be used to monitor other IP based
network devices like routers, switches or modems, as many modern network devices
support the SNMP protocol. This means that by using SNMP protocol all the devices of
the network infrastructure (communication devices and GNSS receivers) can be moni-
tored if they support SNMP. This may help in tracking down network issues, like
malfunctioning routers, bandwidth issues and other problems that may affect the
availability and reliability of GNSS network services.
GR/GM receivers support SNMP versions v1, v2p and v2c.
Description
Baud rates 2400-115200
baud, incl. RTS/CTS
Baud rates 2400-115200
baud, incl. RTS/CTS
USB 2.0
Full speed, 12 Mbit/s (1,5 MB/s)
USB 2.0
High speed, 480 Mbit/s (60 MB/s)
500 mA (5 V) => Support devices up to 2.5 W
5 MHz or 10 MHz
50 nominal
2:1 maximum
0 dBm minimum to +10.0 dBm maximum
0.5 ppm maximum
Sinusoidal
MMCX female - 24QMA-50-2-3/133
802.3 10BASE-T Ethernet
802.3u 100BASE-TX Fast Ethernet
802.3 Auto-negotiation
10/100 MB, Half/Full Duplex
CSMA/CD
Ruggedised RJ45
Default setting
115200/N/8/1/N
115200/N/8/1/N
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