1. Unpacking Instructions

Check that the shipment is complete and that no damage has occurred during transportation. If the contents are incomplete or damaged, file a claim with the carrier immediately. Also notify your local Pendulum sales or service office in case repair or replacement may be required.

1.1. Check List

The shipment should contain the following:

  • The frequency standard.
  • A line cord.
  • A CD with PDF manuals for Pendulum products, e.g. this manual.
  • If you ordered one or two of the output options (70B, 71B, 72B, 73B, 74B), or the disciplining option (79/01), or one of the DC supply options (77, 78, 78/HS), they should already be installed. See “Identifi-cation” below.

The warranty commitments are rendered void if unauthorized access to the interior of the instrument has taken place during the given warranty period.

  • If you ordered one of the DC supply op-tions (77, 78/HS), a three-pole power D- sub socket connector is included that mates with the corresponding rear panel pin connector. It is intended for making a wire harness suitable for linking the instru-ment to an external DC power source.
  • Other options you ordered, e.g. antenna (option 01), antenna cable (option 02), rack mount kit (option 22) or carrying case (option 27/27H) are shipped in sepa-rate boxes.
  • Certificate of Calibration.

1.2. Identification

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.