Safety Rating and Label
Copyright © 2019, Juniper Networks, Inc.
APR on 96-Channel Amplifier Modules
The 96-Channel Amplifier client and DCM ports are capable of emitting high output
powers. To guard against accidental exposure to high power lasers, these ports support
APR, which reduces the output of the laser when a fiber cut is detected.
The 96-Channel Amplifier supports two APRs:
Mid-stage between the DCM Out and DCM In ports. APR is triggered when a Loss of
Light Receive (loLightRx) fault is detected at the DCM IN port of the 96-Channel
Amplifier module. Once APR is triggered, the output of the laser on the DCM Out port
is automatically reduced to a safe level.
Client Out port. APR is triggered when the optical back reflection (OBR) exceeds the
threshold, and the output power is larger than 5 dBm. When APR is triggered, the output
of the laser on the Client Out port is automatically reduced to a safe level.
All BTI7800 Series products meet the FDA requirements for a class 1 laser product with
a Class 1M hazard rating:
LASER RADIATION DO NOT VIEW DIRECTLY WITH OPTICAL INSTRUMENTS CLASS 1M
LASER PRODUCT
A caution label is located on each BTI7800 Series laser circuit pack. Two different labels
are used depending on the circuit pack.
Figure 1: Laser Safety Warning Label with Text
Figure 2: Laser Safety Warning Label Without Text
Chapter 1: BTI7800 Series Safety Information
25