Functional Description - Promax TD-500 Manual De Instrucciones

Combinator and Distributor COFDM DVB-T

1. FUNCTIONAL DESCRIPTION

The TD-500 is a general purpose DVB-T combinator and distributor to be assembled in a 19-
inches1U-height rack. The equipment, in its basic configuration, has two identical internal modules
including 4 inputs and 1 output or 1 input and 4 outputs. Anyone of these modules can be used
as combinator or distributor.
The equipment can be delivered with different configurations and offers up to 4 combinator /
distributor modules with 2 and 4 inputs (refer to PROMAX for availability). Each one of these
modules is bi-directional, being those of 2 input/output that which offers less loss.
The basic TD-500 can combine 4 RF signals coming from 4 modules, as the MO-170, and to
distribute the combined RF signal to 4 distribution lines.
2. SPECIFICATIONS
Frequency range
Total insertion losses
From 45 MHz to 50 MHz
From 50 MHz to 450 MHz
From 450 MHz to 900 MHz
Isolation
From 45 MHz to 50 MHz
From 50 MHz to 450 MHz
From 450 MHz to 900 MHz
Return losses
From 45 MHz to 875 MHz
COMBINATOR MODE
RF inputs
RF outputs
DISTRIBUTOR MODE
RF inputs
RF outputs
MECHANICAL FEATURES
Dimensions
Weight
7/2007
TD-500
45 MHz to 875 MHz
6.9 dB (typ), 7.3 dB (max)
7.3 dB (typ), 8.1 dB (max)
8.1 dB (typ), 9.3 dB (max)
28 dB (typ), 20 dB (min)
28 dB (typ), 20 dB (min)
22 dB (typ), 15 dB (min)
25 dB (typ), 16 dB (min)
Four with 50 Ω BNC female
One with 50 Ω BNC female
One with 50 Ω BNC female
Four with 50 Ω BNC female
482 (W) x 132 (H) x 329 (D) mm
3 Kg
- 3 - TD-500