Bosch Appliances 20, LBB 3519 manual

Digital Congress Network TCB 4 Upgrade Kit LBB 3519/20 Chapter 2. Trunk Communication Board (TCB4)		en 7
2.4 S9 DIP-Switch settings	2.5 Jumper settings

See fig. 2-1for location, and Table 2.1 for functionality of the DIP-switches.

Table 2.1 : S9 DIP-switch settings

TCB4

SW 1	ON*	Chairman priority tone ON (default).
	OFF	Chairman priority tone OFF
SW 2	ON	Audio ‘Mix-Minus’ mode activated in combination with SW3 =
		OFF
	OFF*	Normal Operation (default).
SW 3	ON	Audio ‘Insertion’ mode activated in combination with SW2 =
		OFF
	OFF*	Normal Operation (default).
SW 4	OFF	Reserved (IMPORTANT: must not be changed)
SW 5	OFF	Reserved (IMPORTANT: must not be changed)
SW 6	ON	Active microphones and request will be permanently switched
		off if the priority function of the chairman unit is used.
	OFF*	Active microphones will be switched off temporarily if the prior-
		ity function of the chairman unit is used (default).
SW 7	OFF	Reserved (IMPORTANT: must not be changed)
SW 8	ON	Switching on the CCU will activate the BOOT software, this
		makes a new download possible. All memory settings will be
		erased and returns to the default settings. The unit addresses
		will not be erased.
	OFF*	Normal operation (default).
* = default setting

DIP switch S9 (default settings)

See fig. 2-1for location, and Table 2-2for functionality of the jumpers.

Table 2.2 : Jumper settings

TCB4	Default	Function
X13	1 & 2	Jumpered to provide SRAM Battery back-up
		Open when removing back-up battery. (Position 2 & 3)
X14	1 & 2	Watchdog active
		Open for service purposes. (Position 2 & 3)

S9			ON
1	2	3	4	5	6	7	8

switches 4, 5 and 7 are ‘RESERVED’ Must NOT be changed

For location see fig.. 2-1.

Bosch Security Systems April 03 3922 988 97112 en