5
5. Care and maintenance
For reliable operation of TETRA 43x0 modules, please
observe the following precautions:
- Prevent dust from collecting on the equipment
- Protect the equipment against moisture
- Maintain sufficient free space around the equipment for
cooling.
6. Port connector pin assignments
The modular port pin assignments (see table 5) are such
that similar ports of different units may be connected
back to back with reversed cable (RS-232 interfaces
excepted). See figure 4 for the socket pin numbering
convention used. For 2-wire RS-485 links, I/O is
through pin 1 and 2; the units can be connected to older
Siqura VAD/ADS models using the older-style cable
layout. The more recent models always use pin 1 and 2
for 2-wire I/O.
.
7. Technical specifications
The technical specifications of the TETRA 43x0 system
are listed in table 6 below.
*In the following Optical Specifications section:
a)
4310 refers to an TETRA 4310 TX and TETRA
4310RX pair for multimode operation
b)
4350 refers to an TETRA 4350 TX and TETRA
4350RX pair for single-mode operation
c)
4350/ED refers to an TETRA 4350 TX and TETRA
4350RX pair for extended distance single-mode
operation
**) D1 and D3 can be wired for digital 20 mA current loop/TTY
(see text)
***) Manchester / biphase 32 kbit/s typical
****) Inrush current may be well over 1 A
Table 6. TETRA 43x0 TX/RX technical specifications
Video
No. of channels
4
Video format
PAL/NTSC
Input/Output level
1, nominal
Vpp
DC restore(clamping)
On or off (software selectable)
Bandwidth (-3 dB)
6
MHz
Sampling res @ freq.
10 bit @15.0 MHz
Differential gain
0.5% typ., 1.3% max
%
Differential phase
0.5° typ., 1.0° max
°
Group delay
<50
ns
SNR
>62 (wtd.)
dB
Audio
Number of channels
2 (full duplex)
Bandwidth, -3dB, typ
20 to 20K
Hz
Sampling resolution
16 bit
In-/output level
0 nom, ( +9 max)
dBV
SNR
> 77
dB
Total harmonic
distortion
< 0.25% at nominal level
In-/output impedance
> 50 k
or 600
in / < 50
out bal.
Data
Number of channels
4 (full duplex)
Data format
Asynchronous, serial
Data interfaces
D1, D3 RS 422, RS485, or Manchester,
selectable
D2, D4
RS-232
Data Rate, D1
DC to 256*** kbit/s (3 M samples/s)
Data Rate, D3
DC to 128*** kbit/s (1.5 Msamples/s)
Data Rate, D2 and D4 DC to 115.2 Kbits/s (1.5 Msamples/s)
Contact Closure
Number of channels
2 (full duplex)
Input
+5 V pull-up, 10 k
Activation threshold
0.75 V (<1.5 k
)
Output
NO, fail-safe, potential-free
Switch rating
1 A @ 30 Vdc
Environmental and Safety
Operating temp.
-40 to 74
C
Relative humidity
< 95 % (no condensation)
Electrical safety
AL / IEC / EN 60950-1
UL recognition file
E242498
Laser safety
IEC 60825-1, IEC 60825-2
EMC immunity
EN 55024, EN 50130-4, EN 61000-6-2
EMC emission
EN 55022 (Class B)
FCC 47 CFR 15 (Class B)
Electrical
Supply voltages
12 (/SA: 11-19)
V
DC
Power consumption
<7.2 (cont.)****
W
Current
0.6, maximum
A
Mechanical
Optical connector
SC/UPC
Video connector
BNC 75
Data, Audio, Contact
Cl. connectors
socket (4x) for RJ45 plug
Dimensions
LxWxD =128 x 71 x 190
mm
Weight (approx.)
900
g
Optical
4310*
TETRA 43x0
4350*
4350/ED*
Unit
TX Output Wavelength
1310
1310
1310
nm
RX Output Wavelength
1550
1550
1550
nm
No. of fibers, fiber type
1, MM
1, SM
1, SM
TX Output Power
-4
-4
-4
dBm
RX Min.Input Power
-20
-24
-24
dBm
TX to RX Link Budget
16
19
19
dB
Rx Output Power
-8
-8
-8
dBm
TX Min. input power
-20
-23
-23
dBm
RX to TX Link Budget
20
24
24
dB
Link Length, Max
2 km
20 km
45km
km
Pin
Port 1 (2)
Pin
Port 3 (4)
1
Audio in
+
1
RS-485/422 in
+ (**)
2
Audio in
-
2
RS-485/422 in
- (**)
3
GND
3
RS-232 in
4
CC out B
4
RS-232 out
5
CC IN (ref. to GND) 5
GND
6
CC out A
6
GND
7
Audio out
-
7
RS-485/422 out
-
8
Audio out
+
8
RS-485/422 out
+
Table 5. Pin assignments of the modular electrical ports
(**) Input AND Output for RS-485 2 Wire operation
