Bosch Appliances 3922 988 43318 manual Auto Switch-Off function, Open, Closed

Digital Congress Network Installation and Operating Manual Chapter 2 - Contribution Equipment en 2-28

Auto Switch-Off function

The unit’s ‘Auto Switch-Off ’ function can be enabled or disabled. If enabled, the unit is switched off by removing headphones from the jack socket. If disabled, the units remains on when headphones are removed from the jack socket. See solder spot jumper and resistor configuration.The backlighting feature is only active when a headphone is connected.

LBB 3524/xx and LBB 3526/10 Jumper and Resistor configuration (FIG. 2-48) Solder spots J70 and J71 sets the channel selector’s volume up and down controls.The volume-up and volume-down can be set independently. The ‘Auto Switch-Off ’ function is enabled or disabled using solder spot J72.

1.Solder spot J70 (to set repeat/single-step volume-up control)

OPEN	Auto repeat volume-up
CLOSED	Single-step volume-up

2.Solder spot J71 (to set repeat/single-step volume-down control)

OPEN	Auto repeat volume-down
CLOSED	Single-step volume-down

3.Solder spot J72 (to set Auto-switch Off function)

OPEN Enabled

CLOSED Disabled

Top view
Bottom view
1	2	3

FIG. 2-48 Interconnections LBB 3524/10 and LBB 3526/10

IMPORTANT: The last panel (LBB 3524/10, LBB 3526/10) connected (daisy-chain) must be terminated with a termination plug LBB 4118/00.

Bosch Security Systems 04-2003 3922 988 43318 en LBB 3524/00, LBB 3524/10 and LBB 3526/10 FM Electronic channel selector panel