Bosch Appliances 20, LBB 3519 en, 2Internal view of CCU after upgrade, Ribbon cabling Port Port

Digital Congress Network TCB 4 Upgrade Kit LBB 3519/20 Chapter 1. Upgrade Kit LBB 3519/20 en 5

Connection to I/O board

9-pole D-type connector(s)

Ribbon cabling

Port 1

Port 2

Trunk Communication Board TCB4

DIP-switch S14

DIP-switch S9

6 x securing screws Connection to I/O board

FIGURE 1-2 Internal view of CCU after upgrade

Bosch Security Systems April 03 3922 988 97112 en