Vertex Standard, Portable Radio, models:

PEP2000 - UPDATE V0152 AND V11.54 8-26-10	Update Manual
PEP9000 - UPDATE V0521 AND V11.54	Update
VX-131 Series	Service Manual
VX-160 Series	Specifications
VX-160V	Service Manual
VX-180 Series	Specifications
VX-230 Series	Service Manual
VX-350 series	Service Manual
VX-410 Series	Service Manual Operating Manual
VX-420 Series	Specifications
VX-510 Series	Operating Manual
VX-600	Service Manual
VX-600v	Operating Manual
VX-820 series	Service Manual
VX-900 Series	Service Manual
VX-920 series	Operating Manual
VX-P920 Series	Operating Manual