Ruijie Networks Reyee RG-NBS3100-8GT2SFP-P-V2 Installation Manual page 33

Installation Guide
Mini-GBIC-GT
Caution

For optical modules with a cabling distance of over 40 km (24.85 miles) (including 40 km) (including
24.85 miles), install an optical attenuator to avoid overload on the optical receiver when using short-
distance single-mode fibers (SMFs).

An optical module is a laser transmitter. Do not look directly into the optical module to prevent it from
burning your eyes.

To keep the optical module clean, ensure that the unused ports remain capped.
Table 6-5 Pairing Description of the BIDI Optical Module
Rate/Distance
1000 Mbps/500 m
GE/20 km
GE/40 km
Caution
The BIDI modules must be used in pairs. For example, if you install the GE-SFP-LX20-SM1310-BIDI in the
local port, you must install the GE-SFP-LX20-SM1550-BIDI in the peer port.
RJ45
Ethernet Cat 5 (or higher) twisted-pair cable
cable
Pairing Model
GE-SFP-SX-SM1310-BIDI
GE-SFP-SX-SM1550-BIDI
GE-SFP-LX20-SM1310-BIDI
GE-SFP-LX20-SM1550-BIDI
GE-SFP-LH40-SM1310-BIDI
GE-SFP-LH40-SM1550-BIDI
26
100 m