C261 Board LayoutC257 & C261 GPRS REVI SI ONS GS M S ERV ICE S UPP O RT GR O UP Le vel 3 Boa rd Layout C257 & C261 GPRS Page 1 of 2 2005.07.13 Rev . 1.0 C257 & C261 GPRS REVI SI ONS GS M S ERV ICE S UPP O RT GR O UP Le vel 3 Boa rd Layout C257 & C261 GPRS Page 1 of 2 2005.07.13 Rev . 1.0 ……