Communications; Inter-Relay Communications - GE C30 Instruction Manual

2.2 SPECIFICATIONS
RS232
Front port:
RS485
1 rear port:
2
Typical distance:
Isolation:
ETHERNET (FIBER)
PARAMETER FIBER TYPE
100MB MULTI-
Wavelength 1310 nm
Connector
Transmit power –20 dBm
Receiver sensitivity –30 dBm
Power budget
Maximum input –14 dBm
power
Typical distance
Duplex
Redundancy
ETHERNET (10/100 MB TWISTED PAIR)
Modes:
Connector:
SIMPLE NETWORK TIME PROTOCOL (SNTP)
clock synchronization error: <10 ms (typical)
SHIELDED TWISTED-PAIR INTERFACE OPTIONS
INTERFACE TYPE
RS422
G.703
RS422 distance is based on transmitter power and
does not take into consideration the clock source
NOTE
provided by the user.
LINK POWER BUDGET
EMITTER, TRANSMIT
FIBER TYPE POWER
820 nm LED, –20 dBm
Multimode
1300 nm LED, –21 dBm
Multimode
1300 nm ELED, –23 dBm
Singlemode
1300 nm Laser, –1 dBm
Singlemode
1550 nm Laser, +5 dBm
Singlemode
These power budgets are calculated from the manu-
facturer's worst-case transmitter power and worst
NOTE
2-12
19.2 kbps, Modbus RTU
Up to 115 kbps, Modbus RTU, isolated
together at 36 Vpk
1200 m
2 kV
MODE
LC
10 dB
2 km
full/half
yes
10 MB, 10/100 MB (auto-detect)
RJ45
TYPICAL DISTANCE
1200 m
100 m
RECEIVED POWER
SENSITIVITY BUDGET
–30 dBm 10 dB
–30 dBm 9 dB
–32 dBm 9 dB
–30 dBm 29 dB
–30 dBm 35 dB
C30 Controller System
2 PRODUCT DESCRIPTION
PRECISION TIME PROTOCOL (PTP)
PTP IEEE Std 1588 2008 (version 2)
Power Profile (PP) per IEEE Standard PC37.238TM2011
Slave-only ordinary clock
Peer delay measurement mechanism

2.2.7 INTER-RELAY COMMUNICATIONS

case receiver sensitivity.
The power budgets for the 1300 nm ELED are calcu-
lated from the manufacturer's transmitter power and
NOTE
receiver sensitivity at ambient temperature. At
extreme temperatures these values deviate based
on component tolerance. On average, the output
power decreases as the temperature is increased by
a factor 1dB / 5°C.
MAXIMUM OPTICAL INPUT POWER
EMITTER, FIBER TYPE
820 nm LED, Multimode
1300 nm LED, Multimode
1300 nm ELED, Singlemode
1300 nm Laser, Singlemode
1550 nm Laser, Singlemode

2.2.6 COMMUNICATIONS

MAX. OPTICAL
INPUT POWER
–7.6 dBm
–11 dBm
–14 dBm
–14 dBm
–14 dBm
GE Multilin