Survivable Branch Appliance
AudioCodes Enhanced Media Gateway 26 Document #: LTRT-18206
The RJ-45 connector pinouts are shown in the figure below:
Figure 2-12: RJ-45 Connector Pinouts
Optical Fiber Cabling: The CRMX-S and CRMX-L modules provide a 1000Base-SX and
1000Base-LX Gigabit Ethernet optical fiber port (multi- or single-mode fiber) respectively.
This WAN port provides a 1.25 Gbps optical small form-factor pluggable (SFP) transceiver. To
interface with this SFP transceiver, you need to provide (i.e., not supplied) the following items:
Cable: twin, single-mode or multi-mode optic fiber
• Single-Mode Fiber 1000Base-LX:
♦ Input Sensitivity: -20 dBm maximum
♦ Output Power: -9 dBm minimum; -3 dBm maximum
• Multi-Mode Fiber 1000Base-SX:
♦ Input Sensitivity: -18 dBm maximum
♦ Output Power: -9 dBm minimum; -3 dBm maximum
Connector: LC-type plug
Caution Laser
If the CRMX module's WAN port is ordered for optical fiber interface, then the device
is a Class 1 LED/Laser emitting device, as defined by 21CFR 1040 and IEC825.
Do not stare directly into the beam or into fiber optic terminations as this can
damage your eyesight. Avoid exposure to laser radiation by ensuring that you insert
dust / EMI plugs into SFP transceiver modules to which no cables are connected.
Laser radiation may be emitted from the aperture of the SFP transceiver modules
when no cables are connected.
Care in Handling Fiber Optic Cabling
• When handling fiber optic cables, be sure to implement the following:
- Excessive bending of the Fiber Optic Cable can cause distortion and signal
losses.
- Ensure the minimum bending radius recommended by the Fiber Optic Cable
supplier.
- Maximum Fiber Optic cable length for multimode fiber is 550 m.
• Preserve the minimum-bending ratio indicated by the cable manufacturer.
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