Cisco Compact Broadband Node CBN1222/CBN1224 Data Sheet
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The Cisco® Compact Broadband Node CBN1222/CBN1224 is designed to meet the growing need for bandwidth. The node provides advanced features and benefits and helps operators reduce operating costs by simplifying DOCSIS 3.1 deployments and network upgrades.
The node makes use of the latest developments in gallium nitride (GaN) monolithic microwave integrated circuits (MMICs), bringing excellent RF performance at a lower power consumption (compared to GaAs – Gallium Arsenide technology). It can be configured electronically for rapid initial setup or for adjustments that are needed as network requirements shift. All settings can be done without service interruption, an especially important capability in networks that deliver real-time interactive services such as voice over IP (VoIP) and high-speed data transmission.
The node provides flexible options because of its large optical input range and high RF output level. Thus, it can work with a large variety of reverse transmitters to support a variety of applications within the network.
The number of plug-ins has been minimized to help operators keep inventory and costs down. The full-range electronic attenuators and equalizers offer improved versatility and make it possible to achieve the same adjustment range as with conventional plug-ins or potentiometer solutions. A plug-in diplex filter is used to determine the forward/reverse band split.
To meet future demands for more bandwidth, the node can be configured in the forward band for 1 GHz or 1.2 GHz for bandwidth extension and reverse path that can be upgraded to 204 MHz.
The Cisco Compact Broadband Nodes CBN1222/CBN1224 (Figure 1) can be configured with a status-monitoring transponder (EuroDOCSIS/DOCSIS) to enable remote monitoring of critical node parameters and remote control of the built-in three-state reverse switch.
Features
● Improved distortion at a lower power consumption with GaN-based output stages
● RF output level adjustable over a wide range: up to 116 dBµV
● Wide optical input: –9.9 to +2 dBm
● Configurable for 1.2 GHz or 1 GHz operation
● Configured by electronic gain control (EGC) technology
● Full segmentable in forward path and reverse path
● Automatic redundancy switching for forward path
● Easy setup and control
Product Diagrams
Figure 2 shows an overview product diagram.
Figures 3 and 4 provide a block diagram for the Cisco Compact Broadband Node CBN1224 and CBN1222, respectively.
Product Specifications
This section provides product specifications. Table 1 lists optical specifications, Tables 2 and 3 give forward and reverse RF specifications, and Table 4 lists station-powering specifications. Table 5 provides environmental, mechanical, compliance, and safety specifications.
Table 1. Optical Specifications
| Item |
Value |
| Optical1 |
|
| Optical wavelength |
1260–1620 nm |
| Optical input level |
–9.9 to +2 dBm |
| Optical AGC range |
–7 to 0 dBm |
| Equivalent input noise (EIN) current |
6 pA/ |
(typical 5 pA/Table 2. Forward RF Specifications
| Item |
Value |
|
| Forward RF1 |
||
| Frequency range |
85 to 1218 MHz |
|
| Output level: gain limited |
118 dBµV at 3.25% OMI per channel with 1310nm at –7 dBm optical input |
|
| Digital output level2 |
109 dBµV (CINR = 41.5 dB) |
|
| Number of output ports |
CBN1222 2 active + 1 passive split output |
CBN1224 2 active + 2 passive split output |
| Flatness |
< ≤ ±0.75 dB at 110–865 MHz ≤ ±1.0 dB at 110–1218 MHz |
|
| Tilt from 110–1218 MHz3 |
0.5–3 dB |
|
| Interstage attenuator |
0–20 dB, step 0.5 dB |
|
| Interstage tilt |
0 – 20 dB, step 0.5 dB |
|
| Distortion3,4
● CTB
● CSO
|
≤ –60 dB ≤ –60 dB |
|
| Notes: 1. Unless otherwise specified, all forward band specifications are tested with a 65/86 diplexer module installed. 2. Full digital load from 258 to 1218 MHz, 120 channels, 256 QAM, 12 dB of slope. 3. Depending on configuration. 4. CENELEC 42 channels, 3.25% OMI, 9 dB tilt, and output level 116 dBµV. |
||
Table 3. Reverse RF Specifications
| Item |
Value |
| Reverse RF1 |
|
| Frequency range |
5–204 MHz |
| RF input level2 |
70 dBµV |
| Flatness |
≤ ±0.5 dB at 5 to 85 MHz ≤ ±0.75 dB at 5 to 204 MHz |
| Input return loss |
≥ 18 dB at 5–65 MHz, reduce 1.5 dB per octave |
| Reverse input attenuator |
0–20 dB, 0.5 dB step |
| Reverse tristate switch |
On, –6 dB, off |
| Reverse test point |
0 dB reference to input port |
| Notes: 1. Unless otherwise specified, all reverse band specifications are tested with a 65/86 diplexer module installed. 2. 10% OMI, with reverse attenuator set to 0 dB. |
|
Table 4. Station Powering Specifications
| Item |
Value |
|
| Power Supply |
||
| 65V remote powered |
30–65 VAC |
|
| Powering |
||
| Maximum AC current |
15A at power supply input |
|
| Maximum AC current per port |
10A |
|
| HUM modulati1 |
55 dBc at 6A |
|
| Power Consumption |
||
| Power consumption2 |
CBN1222 with 2 x RTX and transponder |
CBN1224 with 4x RTX and transponder |
| ≤ 41.0W |
≤ 48.0W |
|
| Notes: 1. Between 15–865 MHz and at room temperature (25°C). 2. Segmented mode; power saving mode off. |
||
Table 5. Environmental, Mechanical, Compliance, and Safety Specifications
| Item |
Value |
| Environmental |
|
| Operating temperature |
–40 to +60°C (–40 to +131°F) |
| Water/dust ingress rating |
IP67 |
| Mechanical |
|
| Connectors
● Optical
● RF
|
SC/APC PG11 (reduction ring PG11-5/8” included) |
| Housing dimensions (H x W x D) |
255 mm x 234 mm x 128 mm (10.0 in. x 9.2 in. x 5.0 in.) |
| Weight |
< 4 kg (8.8 lb) |
| Compliance/Safety |
|
| Electrical safety |
EN 50083-1, EN 60065, IEC 60065 |
| Laser safety |
IEC/EN 60825-1 |
| EMC emissions |
EN 50083-2 |
| RoHS |
Directive 2002/95/EC on the Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment, O.J. (L 19) |
Ordering Information
This section contains ordering information for the node (Table 6) and required and optional accessories. To determine the best configuration for your particular application, consult your account representative.
Table 6. Cisco Compact Broadband Node: CBN1220 Series Part Numbers
| Description |
Part Number for Ordering |
| Compact Broadband Segmentable Node CBN1224, 2 Rx, 1.2 GHz, AGC, 65 VAC, 2 x 4 |
CBN-SGN-1224 |
| Compact Broadband Segmentable Node CBN1222, 2 Rx, 1.2 GHz, AGC, 65 VAC, 2 x 2 |
CBN-SGN-1222 |
The required accessories listed in Table 7 must be ordered separately.
Table 7. Required Accessories and Part Numbers
| Description |
Part Number for Ordering |
Reverse transmitter (1 to 2 or 1 to 4):
● Reverse transmitter for CBN122x, CWDM 3 dBm (1310 nm to 1610 nm)
● Reverse transmitter for CBN122x, CWDM 6 dBm (1490 nm to 1610 nm)
|
CBN-RTX-3-xxxx CBN-RTX-6-xxxx |
| Forward filter: 2 required, choose from below:
● High pass filter 85 MHz
● High pass filter 105 MHz
● High pass filter 258 MHz
|
CBN-HPF-85 CBN-HPF-105 CBN-HPF-258 |
| Forward equalizer: 2 required, choose from below:
● Equalizer filter 1006 MHz
● Equalizer filter 1218 MHz
|
CBN-EQL-1008 CBN-EQL-1218 |
| Diplex filter: 1 required for each port, choose from below:
● 65/86 MHz split
● 85/105 MHz split
● 204/258 MHz split
|
CBNA-DPL-6585 CBNA-DPL-85105 CBNA-DPL-204258 |
| Reverse filter: 1 required for each port, choose from below:
● Low pass filter 65 MHz
● Low pass filter 85 MHz
● Low pass filter 105 MHz
● Band pass filter 15/65 MHz
● Band pass filter 15/85 MHz
● Band pass filter 15/204 MHz
|
CBN-LPF-65 CBN-LPF-85 CBN-LPF-105 CBN-BPF-1565 CBN-BPF-1585 CBN-BPF-15204 |
| Output splitter: 1 or 2 required, choose from the below:
● 0 dB link
● 4.5/4.5 dB splitter
● 6 dB tap port
● 8 dB tap output
● 10 dB tap port
● 13 dB tap port
● 15 dB tap port
● 17 dB tap port
|
CBN-LNK-0 CBN-SPL-12-04 CBN-SPL-12-06 CBN-SPL-12-08 CBN-SPL-12-10 CBN-SPL-12-13 CBN-SPL-12-15 CBN-SPL-12-17 |
The optional accessories listed in Table 8 must be ordered separately.
Table 8. Optional Accessories and Part Numbers
| Description |
Part Number for Ordering |
| Plug-in DOCSIS transponder |
CBN-XPD-DOCSIS |
| Plug-in EuroDOCSIS transponder |
CBN-XPD-EuroD |
| VIG module |
CBN-VIG2412 |
| Kit BLE dongle and license for configuration and control |
CBNA-DONGLE-BLE |
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For More Information
To learn more about Cisco Compact Broadband Nodes, visit http://www.cisco.com/c/en/us/products/video/compact-nodes/index.html.
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