User's Manual

A-37
A.4 CAPACITY UPGRADE DS1 TO DS3 OR DS3 TO OC3
Upgrading a DS1 radio to DS3 or DS3 radio to OC3 requires changing straps on the
LBO adaptor, located behind the I/O interface module. Use the following procedure
before starting upgrade from DS3 to OC3.
A.5 CHANGING SYSTEM SOFTWARE
Refer to the Maintenance section in the main book.
J315 J1 POWER SUPPLY
CONTROLLER
RECEIVER
FAN UNIT
SSPA
LBO
TRANSMITTER
I/O INTFC
TMN / RELAY
J318 J307
J316 J315 J308
J317 J309
J312 J310
P1 P2 P3
DS3
DS1/OC3
1. REMOVE I/O
AND RCVR INTFC.
3. STRAP LBO
ADAPTER.
SHOWN IN DEFAULT POSITION FOR DS1/OC3
2. REPLACE I/O INTFC AND RCVR.
MDR-1015
06/15/04