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GPIM-08 Reference Sheet
The GPIM-08 Gigabit Ethernet Port Interface Module is a single-mode fiber-optic interface device that can be installed into an
Enterasys Networks device that supports Enterasys Networks Gigabit Ethernet Port Interface Modules. Check the documention of your
host device to see if it will support the GPIM-08.
FEATURES/SPECIFICATIONS
Refer to
Table 1
for the GPIM-08 features and optical specifications.
SAFETY INFORMATION
CLASS 1 LASER TRANSCEIVERS
THE GPIM-08 GIGABIT ETHERNET INTERFACE MODULE USES A CLASS 1 LASER TRANSCEIVER. READ THE
FOLLOWING SAFETY INFORMATION BEFORE INSTALLING OR OPERATING THIS MODULE.
The Class 1 laser transceivers use an optical feedback loop to maintain Class 1 operation limits. This control loop eliminates the need for maintenance checks or
adjustments. The output is factory set, and does not allow any user adjustment. Class 1 laser transceivers comply with the following safety standards:
• 21 CFR 1040.10 and 1040.11 U.S. Department of Health and Human Services (FDA).
• IEC Publication 825 (International Electrotechnical Commission).
• CENELEC EN 60825 (European Committee for Electrotechnical Standardization).
When operating within their performance limitations, laser transceiver output meets the Class 1 accessible emission limit of all three standards. Class 1 levels of laser
radiation are not considered hazardous.
SAFETY INFORMATION
CLASS 1 LASER TRANSCEIVERS
LASER RADIATION AND CONNECTORS
When the connector is in place, all laser radiation remains within the fiber. The maximum amount of radiant power exiting the fiber (under normal conditions) is -12.6
dBm or 55 x 10
-6
watts.
Removing the optical connector from the transceiver allows laser radiation to emit directly from the optical port. The maximum radiance from the optical port (under
worst case conditions) is 0.8 W cm
-2
or 8 x 10
3
W m
2
sr-1.
Do not use optical instruments to view the laser output. The use of optical instruments to view laser output increases eye hazard. When viewing the output
optical port, power must be removed from the network adapter.
Table 1
Features and Optical Specifications
Features
Optical Specifications
Supports single-mode fiber-optic cable
segments up to 70 km
1
1. The maximum drive distance (up to 70 km) depends on the quality of the installed single-mode fiber-optic cable segment. Use the link power
budget (22 dB) to calculate the maximum cable length of the attached segment. The link power budget must not exceed
22 dB
as specified in this
table. When using cable lengths less than 50 km, ensure that the cable has at least 3 dB of attenuation. The GPIM-08 input power must not exceed
-3 dBm. Otherwise, saturation could occur.
Cable Type
10 µm SMF
Maximum Input Power
-3 dBm
1550 nm wavelength
Transmit Power
0 dBm minimum
+5 dBm maximum
Duplex SC style fiber-optic connector
Receive Sensitivity
-22 dBm
Full Duplex only
Link Power Budget
22 dB
These specifications meet or exceed IEEE 802.3 1000BASE-LX requirements.
