| Communication Mode: | Full-Duplex & Half-Duplex |
|---|---|
| Type: | Ethernet Switch |
| Transmission Rate: | 10/100/1000Mbps |
|
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The S1720-28GFR-4P does not have the PoE indicator. The meanings of other indicators are the same as those on the S1720-28GWR-PWR-4X.
The S1720-28GFR-4P has a built-in power module and does not support pluggable power modules.
The S1720-28GFR-4P has no fans and uses natural heat dissipation.
|
Item |
Description |
|---|---|
|
Memory (RAM) |
512 MB |
|
Flash |
512 MB in total, 240 MB available for customers |
|
Mean time between failures (MTBF) |
45 years |
|
Mean time to repair (MTTR) |
2 hours |
|
Availability |
> 0.99999 |
|
Service port surge protection |
Common mode: ±7 kV |
|
Power supply surge protection |
±6 kV in differential mode, ±6 kV in common mode |
|
Dimensions (H x W x D) |
|
|
Weight (including packaging) |
3.9 kg (8.6 lb) |
|
Stack ports |
Not supported |
|
RTC |
Not supported |
|
RPS |
Not supported |
|
PoE |
Not supported |
|
Rated voltage range |
100 V AC to 240 V AC, 50/60 Hz |
|
Maximum voltage range |
90 V AC to 264 V AC, 47 Hz to 63 Hz |
|
Maximum power consumption (100% throughput) |
20.2 W |
|
Typical power consumption (30% of traffic load)
|
16.1 W |
|
Operating temperature |
0°C to 45°C (32°F to 113°F) at an altitude of 0-1800 m (0-5906 ft.)
NOTE:
When the altitude is 1800-5000 m (5906-16404 ft.), the highest operating temperature reduces by 1°C (1.8°F) every time the altitude increases by 220 m (722 ft.). The operating temperature of the switch is 0°C to 40°C (32°F to 104°F) when it uses GE SFP optical modules with 40 km or longer transmission distances. |
|
Short-term operating temperature |
-5°C to +50°C (23°F to 122°F) at an altitude of 0-1800 m (0-5906 ft.)
NOTE:
When the altitude is 1800-5000 m (5906-16404 ft.), the highest operating temperature reduces by 1°C (1.8°F) every time the altitude increases by 220 m (722 ft.).
The equipment can operate beyond the normal operating temperature range for a short-term period, but the following conditions must be met:
The equipment cannot start when the temperature is lower than 0°C (32°F). The maximum distance of optical modules used in these conditions cannot exceed 10 km. |
|
Storage temperature |
-40°C to +70°C (-40°F to +158°F) |
|
Noise under normal temperature (27°C, sound power) |
Noise-free (no fans) |
|
Relative humidity |
5% to 95%, noncondensing |
|
Operating altitude |
0-5000 m (0-16404 ft.) |
|
Certification |
|
|
Part number |
98010848 |
Chongqing Chimu Technology Co., Ltd. was established in 2011, we have been engaged in this industry 11 years. Relying on 11 years of deep experience in the communication field and scientific and technological innovation ability, through the integration of multi-brand, full series of communication products resources, with a one-stop service model. Let the network better connect you and me, connect the world. In order to meet the needs of customers, we have eatablished a perfect supply chain system to provide super products with reliable quality and reasonable price.
We are devoted to offering Switches, Routers, Servers, Storages, LTs, SDHs, Network Modules, Interface Cards, Security Firewalls, Wireless AP. Our long-term aim is to provide users high-quality, efficient, economic, timely services. Looking forward to establish long-term and win-win business relations with you.
A)Stable and Wide Supply Chain System
we have established a perfect supply chain system to provide a wide range of products with reliable quality and reasonable price.
B)Competitive Price
We ensure the most competitive price. Warm reminders here, telecommunications equipment configuration is quite different, the price shown on the website is only for reference. After configuration and quantity been confirmed, we will give the final most competitive discounted price.
C) Safe and Easy Payment Solutions
We accept all major credit cards, PayPal and wire transfer.
D)Fast Delivery and Shipping
Fast, professional and reliable delivery.
E)11 Years Experience
we have been engaged in this industry more than 11 years, we have rich industry experience.
Q: How about your main products?
A: Our product lines include Switches, Routers, SFP Modules, OLTs, SDHs, Network Modules, Interface Cards, Security Firewalls, Wireless AP etc.
Q: What brand of products do you offer?
A: We can supply all the brands you need.
Q: what services can we provide?
A:Accepted Delivery Terms: FOB,CFR,EXW,FCA;
Accepted Payment Currency:USD,EUR,CAD,HKD,GBP,CNY;
Accepted Payment Type: T/T,MoneyGram,PayPal,Western Union,Cash etc...
Q: Can we get free samples?
A: Sorry, it is not available, but you can pay for one.
Q. How can we guarantee quality
?
A:Always a pre-production sample before mass production;
Always final Inspection before shipment;
Q: How about your delivery time?
A: Generally, it will take 1 to 10 days after receiving your deposit. The specific delivery time depends on the items and the quantity of your order.
Q: Do you test all your goods?
A: Yes, We have professional engineer to test all devices before shipping.
Q:How about the MOQ?
A:1 piece
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