Figure 23: IEEE-488 connections
To connect the instrument to the IEEE-488 bus, line up the cable connector with the connector on the
rear panel. Install and tighten the screws securely, making sure not to overtighten them. Refer to
Remote interface connections (on page 2-12) for the location of the connector.
Connect any additional connectors from other instruments as required for your application. Make sure
the other end of the cable is properly connected to the controller. You can have up to 15 devices
connected to a GPIB interface, including the controller. The maximum cable length is the lesser
of either:
• The number of devices multiplied by 2 m (6.5 ft)
• 20 m (65.6 ft)
You may see erratic bus operation if you ignore these limits.
Primary address
The 2601B-PULSE ships from the factory with a GPIB primary address of 26. If the GPIB interface is
enabled, it momentarily displays the primary address on power-up. You can set the address to a
value from 0 to 30, but do not assign the same address to another device or to a controller that is on
the same GPIB bus (controller addresses are usually 0 or 21).
To set or check the primary address from the front panel:
1. Press the MENU key, select GPIB, and then press the ENTER key or the navigation wheel.
2. Select ADDRESS, then press the ENTER key or the navigation wheel.
3. Use the navigation wheel to set the primary address to the appropriate value, then press the
ENTER key or the navigation wheel.
4. Press the EXIT (LOCAL) key twice to return to the normal display.
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