AT5000 2.6GHz DMOD Optical Transmitter
Solutions Provider for FTTx, RFoG and HFC www. ascentcomtec.com
Page 14 of 27
The unit is housed in a 19” rack, 1 RU height. Status indicators and control keys are located on
the front panel along with an RF monitor port. The front panel provides an LCD display for
comprehensive status information and user interface. The rear panel contains the optical
interconnects, power, and data interface connectors.
The RF test port on the front panel is -20 dB from the modulating signal level. This is just after
the internal AGC functional block. This signal is constant when the AGC circuit is functioning
normally. Refer to the specification for typical levels. The output impedance of this port is 75
Ω, with an F-type connector.
The rear panel also contains the two optical ports, which are typically SC/APC bulkhead
connectors.
The power interface, is a standard 3-prong line cord, with hot, neutral, and chassis ground.
The metal chassis of the transmitter is tied to ground.
The AT5226-DMOD will be in AGC mode (Automatic Gain Control) when first powered on. To
change it to MGC mode (Manual Gain Control), refer to
Section 5.3
.
AT5226-DMOD Wavelength Options: The following table contains the ITU frequency plan with
corresponding wavelengths available to the AT5226-DMOD.
Channel
ITU Freq.
(THz)
Avail. ITU
Wavelengths (nm)
Channel
ITU Freq.
(THz)
Avail. ITU
Wavelengths (nm)
Order Code
Order Code
60
196.0
1529.55
40
194.0
1545.32
59
195.9
1530.33
39
193.9
1546.12
58
195.8
1531.12
38
193.8
1546.92
57
195.7
1531.90
37
193.7
1547.72
56
195.6
1532.68
36
193.6
1548.51
55
195.5
1533.47
35
193.5
1549.32
54
195.4
1534.25
34
193.4
1550.12
53
195.3
1535.04
33
193.3
1550.92
52
195.2
1535.82
32
193.2
1551.72
51
195.1
1536.61
31
193.1
1552.52
50
195.0
1537.40
30
193.0
1553.33
49
194.9
1538.19
29
192.9
1554.13
48
194.8
1538.98
28
192.8
1554.94
47
194.7
1539.77
27
192.7
1555.75
