If you want to restore particular sequence of archivelogs from RMAN tape backup, then follow below steps.
connect target sys/******@CRM_DB
connect catalog RMAN_tst/*****@catdb
 run
 {
 allocate channel t1 type SBT_TAPE parms ‘ENV=(NSR_SERVER=nwwerpw,NSR_CLIENT=tsc_test01,NSR_DATA_VOLUME_POOL=DD086A1)’connect sys/****@CRM_DB;
 set archivelog destination to ‘/dumparea/’;
 restore archivelog from sequence 7630 until sequence 7640;
 release channel t1;
 }
Above script will restore the archive sequences from 7630 to 7640 to to /dumparea location .
SIMILAR ARCTICLE

IT’s very helpful