User's Manual

PAF-19XX-EX-XXX Installation Instructions
044-05298 Rev A 3-5
Figure 3-4 Frame to Halo Ground Connection Example
RS-485 Alarm Interface
The RS-485 alarm interface provides the BTS controller with system status via a 1 byte protocol. The baud
rate is fixed at 15.6 K. Table 3-6 lists the available alarm states.
MCPA
Install the MCPAs as instructed in Table 3-7.
NOTE
DO NOT remove metallic tape at frame top when connecting to Halo ground system. Removing
tape voids PAF frame warranty.
Table 3-4 RS-485 Alarm States
AlarmState Definition
No Alarm
Minor Alarm Any or all fans fail
Major Alarm Any one MCPA module disabled
Critical All MCPA modules disabled
CAUTION: Slowly insert MCPA into subrack. Forcing MCPA into subrack may cause pins on
the MCPA D-sub connector to become recessed or broken.
Ground
Sticker
To Halo
Ground
To Halo
Ground
Metallic
Tape