The number of available LAN ports can be increased by cascading multiple LTC 8946/93 LAN
switches. Each LTC 8946/93 provides 10 additional ports. Additional ports are only required in
large systems with more than a combined total of 11 LTC 8902 Series and LTC 8903 Series
bays.
Multiple LTC 8946/93 LAN Switch Connections
When the combined quantity of LTC 8902 Series and LTC 8903 Series matrix bays exceeds 11,
use 1 or more additional LTC 8946/93 LAN switch(s). Each additional LTC 8946/93 switch
provides 10 additional ports for connection to matrix bays.
Connect the supplied 2 m (6 ft) crossover cable from any port of the second LTC 8946/93 LAN
switch to any port located on the first LTC 8946/93 LAN switch. Connect any additional LTC
8946/93 LAN switches similarly. These data connections are illustrated in , page 66.
Main Power Connections
Install the supplied AC power cords between the various pieces of equipment and the
appropriate AC power source. Verify that the AC power switches (on applicable components)
are initially set to OFF.
The order that power is supplied to the system is not critical, but the following order is
recommended if unfamiliar with the equipment:
Apply power to the LTC 8946/93 LAN switch(es). The LAN switches do not have a main AC
power switch, and should power up as soon as the main AC power cord is connected.
Switch on the main AC power to the video bays (LTC 8902 and LTC 8903). Verify that the
LEDs associated with the fuses are lit on all of the power supplies located in the LTC 8902
Series and LTC 8903 Series matrix bays. Initially, the modules within the matrix bays should
indicate the following conditions:
1.
The CPU ACT. LEDS on all Data Receiver modules (module next to power supply)
installed in the various matrix bays should blink randomly green. The LAN LINK/ACT LED
will blink green to indicate communication with the Allegiant CPU. The LAN DUP/COL
LED illuminates yellow to indicate a full duplex network link exists with the Allegiant CPU.
All other LEDs can be ignored.
2.
Activity LEDs should be blinking on the video input and output modules installed in the
matrix bays.
Apply power to the LTC 8904 Series CPU bay. The LTC 8904 Series CPU does not have a
main AC power switch, and should power up as soon as the main AC power cord is
connected. The front panel power LED should be lit and the Activity LED should blink.
NOTE: Depending on activity and general size of the system, it may require several
seconds to fully initialize after a power-up reset.
At this point, the system should be operational. If cameras and monitors are connected to
the system, video from camera number 1 should be visible on all system monitors. The
on-screen text overlay should be visible and the clock should be running (even if no video
signal is present). If not, double-check video and data cable connections. If necessary,
refer to the Troubleshooting Guide in this manual.
To complete the installation, proceed to Camera Phasing and Accessory Installation, page
52.
5.13.3
5.14
30
en | Hardware Installation Procedure for Standard Systems Utilizing LTC 8904 Series
CPU
LTC 8900 Series
2015.01 | 10.6 |
Installation Manual
Bosch Security Systems, Inc.
