Options installed inside the cover are identified on the rear panel according to the list below. Up to two output boards in any combination can be fitted at the same time. The combined I/O board
Option 79/01 is an exception. Only one such board can be fitted. However, it can be com-bined with any other output board.
Option 70B: 4 BNC-connectors mounted in the area designated.
Option 71B: 4 BNC-connectors mounted in the area designated.
Option 72B: 4 BNC-connectors mounted in the area designated.
Option 73B: 4 BNC-connectors mounted in the area designated.
Option 74B: 4 BNC-connectors mounted in the area designated.
Option 77: -48 VDC power supply & rear panel power D-sub connector.
Option 78: Internal 16 VDC rechargeable bat-tery for GPS-12(R)
Option 78/HS: Internal 16 VDC rechargeable battery & rear panel power D-sub connector for ext. 12 VDC source. Intended for GPS-12R/HS and GPS-12RG.
Option 79/01: 4 BNC-connectors mounted in the area designated.