Huawei OptiX OSN 2500 Quick Installation Manual page 6

Cables
–48 V DC power cable
BGND power cable
PGND cable
Power cable for the general
75-ohm 8xE1 cable 120-ohm 8xE1 cable
subrack
75/120-ohm clock transit cable (1) 75/120-ohm clock transit cable (2) 75-ohm clock cable
Alarm output and input cable Alarm cascading cable between subracks COA cascading serial port cable
COA serial port cable COA power cable
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