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...ports, and 2 small-form-factor pluggable (SFP) module slots. (Two of the four uplink ports are active at 10 or 100 Mbps. Catalyst 2950G-48-EI-48 10/100 Ethernet ports and 2 GBIC module slots - Catalyst 2950ST-24 LRE 997 switch-24 LRE ports, 2 10/100/1000 Ethernet ports, and 2...these GBIC modules: 1000BASE-SX GBIC 1000BASE-LX/LH GBIC 1000BASE-ZX GBIC 1000BASE-T GBIC (model WS-5483) Coarse Wave Division Multiplexer (CWDM) fiber-optic GBIC GigaStack GBIC • Configuration - Catalyst 2950SX-48-SI switch-48 10/100 Ethernet ports and 2 1000BASE-SX ports - For 10/100/1000 ports on the ...
...ports, and 2 small-form-factor pluggable (SFP) module slots. (Two of the four uplink ports are active at 10 or 100 Mbps. Catalyst 2950G-48-EI-48 10/100 Ethernet ports and 2 GBIC module slots - Catalyst 2950ST-24 LRE 997 switch-24 LRE ports, 2 10/100/1000 Ethernet ports, and 2...these GBIC modules: 1000BASE-SX GBIC 1000BASE-LX/LH GBIC 1000BASE-ZX GBIC 1000BASE-T GBIC (model WS-5483) Coarse Wave Division Multiplexer (CWDM) fiber-optic GBIC GigaStack GBIC • Configuration - Catalyst 2950SX-48-SI switch-48 10/100 Ethernet ports and 2 1000BASE-SX ports - For 10/100/1000 ports on the ...
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... 17x 18x 19x 20x 21x 22x 23x Catalyst 2950 SERIES 24x 100BASE-FX 25 26 10/100 ports 100BASE-FX ports Figure 1-4 Catalyst 2950G-12-EI Switch SYST RPS STAT UTIL DUPLX SPEED MODE 1 1X 23 45 67 8 9 10 11 12 11X 2X 12X 10/100 ports 1 Catalyst 2950 SERIES 2 GBIC... module slots Figure 1-5 Catalyst 2950G-24-EI Switch SYST RPS STAT UTIL DUPLX SPEED MODE 1 1X 23 45 67 8 9 10 11 12 11X 2X 12X 13 13X 14 15 16 17 18...
... 17x 18x 19x 20x 21x 22x 23x Catalyst 2950 SERIES 24x 100BASE-FX 25 26 10/100 ports 100BASE-FX ports Figure 1-4 Catalyst 2950G-12-EI Switch SYST RPS STAT UTIL DUPLX SPEED MODE 1 1X 23 45 67 8 9 10 11 12 11X 2X 12X 10/100 ports 1 Catalyst 2950 SERIES 2 GBIC... module slots Figure 1-5 Catalyst 2950G-24-EI Switch SYST RPS STAT UTIL DUPLX SPEED MODE 1 1X 23 45 67 8 9 10 11 12 11X 2X 12X 13 13X 14 15 16 17 18...
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... 15 16 17 18 19 20 21 22 23 24 23X 14X 24X 10/100 ports 1 Catalyst 2950 SERIES 2 GBIC module slots Figure 1-7 Catalyst 2950G-48-EI Switch SYST RPS STAT UTIL DUPLX SPEED MODE 1 1X 2X 23 45 67 8 9 10 11 12 13 14 15 16 17 15X 17X 18 19... 27 28 29 30 31 32 16X 18X 33 31X 33X 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 47X 32X 34X 48X 10/100 ports Catalyst 2950 SERIES 1 2 GBIC module slots Figure 1-8 Catalyst 2950ST-8 LRE Switch Power LRE connector port SFP ports 110...
... 15 16 17 18 19 20 21 22 23 24 23X 14X 24X 10/100 ports 1 Catalyst 2950 SERIES 2 GBIC module slots Figure 1-7 Catalyst 2950G-48-EI Switch SYST RPS STAT UTIL DUPLX SPEED MODE 1 1X 2X 23 45 67 8 9 10 11 12 13 14 15 16 17 15X 17X 18 19... 27 28 29 30 31 32 16X 18X 33 31X 33X 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 47X 32X 34X 48X 10/100 ports Catalyst 2950 SERIES 1 2 GBIC module slots Figure 1-8 Catalyst 2950ST-8 LRE Switch Power LRE connector port SFP ports 110...
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..., 2950C-24, 2950SX-24, and 2950T-24 switches • Figure 1-16 for the Catalyst 2950G-12-EI, 2950G-24-EI, and 2950G-24-EI-DC switches • Figure 1-17 for the Catalyst 2950G-48-EI, Catalyst 2950SX-48-SI, and Catalyst 2950T-48-SI switches • Figure 1-18 for the Catalyst 2950ST-8 LRE and 2950ST-24 LRE switches •...
..., 2950C-24, 2950SX-24, and 2950T-24 switches • Figure 1-16 for the Catalyst 2950G-12-EI, 2950G-24-EI, and 2950G-24-EI-DC switches • Figure 1-17 for the Catalyst 2950G-48-EI, Catalyst 2950SX-48-SI, and Catalyst 2950T-48-SI switches • Figure 1-18 for the Catalyst 2950ST-8 LRE and 2950ST-24 LRE switches •...
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... STAT UTIL DUPLX SPEED MODE 1 1X 23 45 67 8 9 10 11 12 11X 2X 12X Mode button Figure 1-17 LEDs on Catalyst 2950G-48-EI, 2950SX-48-SI, and 2950T-48-SI Switches Port status LEDs System LED RPS LED Port mode LEDs SYST RPS STAT UTIL DUPLX SPEED MODE 1 1X 23 45 67 89 10...
... STAT UTIL DUPLX SPEED MODE 1 1X 23 45 67 8 9 10 11 12 11X 2X 12X Mode button Figure 1-17 LEDs on Catalyst 2950G-48-EI, 2950SX-48-SI, and 2950T-48-SI Switches Port status LEDs System LED RPS LED Port mode LEDs SYST RPS STAT UTIL DUPLX SPEED MODE 1 1X 23 45 67 89 10...
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... is using less than 25 percent of the total bandwidth, and so on a Catalyst 2950G-48-EI, 2950SX-48-SI, or 2950T-48-SI switch are off , the switch is using less than 25 percent of the total bandwidth, ...and so on. (See Figure 1-22.) 65397 Figure 1-22 Bandwidth Utilization on Catalyst 2950G-12-EI...25% + 25% - 49% + 50% + Catalyst 2950 1 2 If all LEDs on a Catalyst 2950G-12-EI switch are green (no amber showing), the switch is using 50 percent or more of the total bandwidth. If LEDs for...
... is using less than 25 percent of the total bandwidth, and so on a Catalyst 2950G-48-EI, 2950SX-48-SI, or 2950T-48-SI switch are off , the switch is using less than 25 percent of the total bandwidth, ...and so on. (See Figure 1-22.) 65397 Figure 1-22 Bandwidth Utilization on Catalyst 2950G-12-EI...25% + 25% - 49% + 50% + Catalyst 2950 1 2 If all LEDs on a Catalyst 2950G-12-EI switch are green (no amber showing), the switch is using 50 percent or more of the total bandwidth. If LEDs for...
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CONSOLE RPS connector Fan RJ-45 console port Figure 1-26 Catalyst 2950G-48-EI, Catalyst 2950SX-48-SI, and Catalyst 2950T-48-SI Switch Rear Panel 65511 12005R@[email protected]~~ AC power connector [email protected]. RPS connector Fan exhaust ...6156-01 Catalyst 2950 Switch Hardware Installation Guide 1-21 Chapter 1 Overview Rear-Panel Description Figure 1-24 Bandwidth Utilization on Catalyst 2950G-48-EI, 2950SX-48-SI, and 2950T-48-SI Switches 65510 Catalyst 2950 12 1X 3 24 56 78 9 10 11 12 13 14 15 16 15X 17 18 17X 19...
CONSOLE RPS connector Fan RJ-45 console port Figure 1-26 Catalyst 2950G-48-EI, Catalyst 2950SX-48-SI, and Catalyst 2950T-48-SI Switch Rear Panel 65511 12005R@[email protected]~~ AC power connector [email protected]. RPS connector Fan exhaust ...6156-01 Catalyst 2950 Switch Hardware Installation Guide 1-21 Chapter 1 Overview Rear-Panel Description Figure 1-24 Bandwidth Utilization on Catalyst 2950G-48-EI, 2950SX-48-SI, and 2950T-48-SI Switches 65510 Catalyst 2950 12 1X 3 24 56 78 9 10 11 12 13 14 15 16 15X 17 18 17X 19...
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Other than for the Catalyst 2950G-24-EI-DC and the Catalyst 2950ST-24 LRE 997 switches, use the supplied AC power cord to connect the AC power connector to a switch by using the AC internal power supply, the DC-input power source, or the Cisco RPS. Note The AC power connector is..., and Catalyst 2950ST-24 LRE 997 Switch Rear Panel RPS Fans connector 81225 Power Connectors You can order these L-shaped AC power cords from your Cisco sales representative: • CAB-NP1200-AC-AR= • CAB-NP1200-AC-AU= • CAB-NP1200-AC-CH= • CAB-NP1200-AC-EU= 1-22 Catalyst 2950...
Other than for the Catalyst 2950G-24-EI-DC and the Catalyst 2950ST-24 LRE 997 switches, use the supplied AC power cord to connect the AC power connector to a switch by using the AC internal power supply, the DC-input power source, or the Cisco RPS. Note The AC power connector is..., and Catalyst 2950ST-24 LRE 997 Switch Rear Panel RPS Fans connector 81225 Power Connectors You can order these L-shaped AC power cords from your Cisco sales representative: • CAB-NP1200-AC-AR= • CAB-NP1200-AC-AU= • CAB-NP1200-AC-CH= • CAB-NP1200-AC-EU= 1-22 Catalyst 2950...
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...24-EI-DC and 2950ST-24 LRE 997 switches only to -72 VDC. Cisco RPS Connector Specific Cisco RPS models support specific Catalyst 2950 switches: • Cisco RPS 300 (model PWR300-AC-RPS-N1) • Cisco RPS 675 (model PWR675-AC-RPS-N1=) Cisco RPS 300 The Cisco RPS 300 has two output levels: -48 V...receptacle. Statement 100C The RPS is not in this range, the switch might not operate properly or might be damaged. Cisco RPS 675 The Cisco RPS 675 has two output levels: -48 V and 12 V with a total maximum output power of network traffic. It automatically senses when the internal power ...
...24-EI-DC and 2950ST-24 LRE 997 switches only to -72 VDC. Cisco RPS Connector Specific Cisco RPS models support specific Catalyst 2950 switches: • Cisco RPS 300 (model PWR300-AC-RPS-N1) • Cisco RPS 675 (model PWR675-AC-RPS-N1=) Cisco RPS 300 The Cisco RPS 300 has two output levels: -48 V...receptacle. Statement 100C The RPS is not in this range, the switch might not operate properly or might be damaged. Cisco RPS 675 The Cisco RPS 675 has two output levels: -48 V and 12 V with a total maximum output power of network traffic. It automatically senses when the internal power ...
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...direct exposure to be grounded. Statement 1051 Warning The Catalyst 2950G-24-EI-DC contains no field-replaceable units (FRUs). For information about obtaining service for this unit, contact your reseller or Cisco sales representative. Statement 43 Warning Do not stack the chassis on a ...wall with optical instruments. Statement 1030 Warning Class 1 laser product. Do not open the chassis or attempt to remove or replace any components. Statement 48 Warning To comply ...
...direct exposure to be grounded. Statement 1051 Warning The Catalyst 2950G-24-EI-DC contains no field-replaceable units (FRUs). For information about obtaining service for this unit, contact your reseller or Cisco sales representative. Statement 43 Warning Do not stack the chassis on a ...wall with optical instruments. Statement 1030 Warning Class 1 laser product. Do not open the chassis or attempt to remove or replace any components. Statement 48 Warning To comply ...
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... switch) • Console cable • Mounting kit containing these conditions: - See the "LRE Port" section on the Catalyst 2950G-24-EI-DC switch is installed in Appendix A, "Technical Specifications." • Clearance to the shipping container and save them. Front-panel LEDs can be...power outlet. - Rear-panel direct current (DC) power connector on page 1-9. • Operating environment is missing or damaged, contact your Cisco representative or reseller for Installation • For GigaStack GBIC module ports, the cable length from a switch to Telcordia GR-1089-CORE Intra-...
... switch) • Console cable • Mounting kit containing these conditions: - See the "LRE Port" section on the Catalyst 2950G-24-EI-DC switch is installed in Appendix A, "Technical Specifications." • Clearance to the shipping container and save them. Front-panel LEDs can be...power outlet. - Rear-panel direct current (DC) power connector on page 1-9. • Operating environment is missing or damaged, contact your Cisco representative or reseller for Installation • For GigaStack GBIC module ports, the cable length from a switch to Telcordia GR-1089-CORE Intra-...
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...attaching the brackets to a rack Note The DC-switch kit ships only with the Catalyst 2950G-24-EI-DC or Catalyst 2950ST-24 LRE 997 switch. • One RJ-45-to-DB-9 adapter cable ...on a wall, or on a table or shelf, you should power on the switch and verify that adapter from Cisco. When the switch begins POST, the system LED is off power to power on , it automatically begins POST, ...a series of tests that verifies that the switch functions properly. Call Cisco Systems if your switch does not pass POST. Four number-8 Phillips truss-head screws for the steps ...
...attaching the brackets to a rack Note The DC-switch kit ships only with the Catalyst 2950G-24-EI-DC or Catalyst 2950ST-24 LRE 997 switch. • One RJ-45-to-DB-9 adapter cable ...on a wall, or on a table or shelf, you should power on the switch and verify that adapter from Cisco. When the switch begins POST, the system LED is off power to power on , it automatically begins POST, ...a series of tests that verifies that the switch functions properly. Call Cisco Systems if your switch does not pass POST. Four number-8 Phillips truss-head screws for the steps ...
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... in a rack: Warning To prevent bodily injury when mounting or servicing this unit in a partially filled rack, load the rack from Cisco (part number RCKMNT-1RU=). The following guidelines are provided to ensure your safety: • This unit should be mounted at the bottom...Brackets to ensure that the system remains stable. Attaching the Optional Cable Guide, page 2-16 Note Installing a Catalyst 2950G-48-EI, Catalyst 2950SX-48-SI, or Catalyst 2950T-48-SI switch in a 23-inch or 24-inch rack requires an optional bracket kit not included with stabilizing devices, install the ...
... in a rack: Warning To prevent bodily injury when mounting or servicing this unit in a partially filled rack, load the rack from Cisco (part number RCKMNT-1RU=). The following guidelines are provided to ensure your safety: • This unit should be mounted at the bottom...Brackets to ensure that the system remains stable. Attaching the Optional Cable Guide, page 2-16 Note Installing a Catalyst 2950G-48-EI, Catalyst 2950SX-48-SI, or Catalyst 2950T-48-SI switch in a 23-inch or 24-inch rack requires an optional bracket kit not included with stabilizing devices, install the ...
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...flat-head screws to one side of the switch. See Figure 2-1, Figure 2-2, and Figure 2-3. • When mounting a Catalyst 2950G-48-EI, Catalyst 2950SX-48-SI, or Catalyst 2950T-48-SI switch in a 19-inch rack, use depend on the Switch in a 19-Inch Rack (Front Panel Forward) 45580 Number-8 Phillips...23-, or 24-inch rack. See Figure 2-7, Figure 2-8, and Figure 2-9. • When mounting a switch other than a Catalyst 2950G-48-EI, Catalyst 2950SX-48-SI, or Catalyst 2950T-48-SI switch in a 24-inch rack, use two Phillips truss-head screws to attach the long side of the 19- See Figure 2-10,...
...flat-head screws to one side of the switch. See Figure 2-1, Figure 2-2, and Figure 2-3. • When mounting a Catalyst 2950G-48-EI, Catalyst 2950SX-48-SI, or Catalyst 2950T-48-SI switch in a 19-inch rack, use depend on the Switch in a 19-Inch Rack (Front Panel Forward) 45580 Number-8 Phillips...23-, or 24-inch rack. See Figure 2-7, Figure 2-8, and Figure 2-9. • When mounting a switch other than a Catalyst 2950G-48-EI, Catalyst 2950SX-48-SI, or Catalyst 2950T-48-SI switch in a 24-inch rack, use two Phillips truss-head screws to attach the long side of the 19- See Figure 2-10,...
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Installing the Switch Chapter 2 Installation Figure 2-4 Attaching Brackets on a Catalyst 2950G-48-EI, Catalyst 2950SX-48-SI, or Catalyst 2950T-48-SI Switch in a 19-Inch Rack (Front Panel Forward) Number-8 Phillips flat-head screws SYST RPS STAT UTIL DUPLX SPEED MODE 1 1X 23 ...45 67 89 10 11 12 13 14 15 16 15X 2X 16X 65512 Figure 2-5 Attaching Brackets on a Catalyst 2950G-48-EI, Catalyst 2950SX-48-SI, or Catalyst 2950T-48-SI Switch in a 19-Inch Rack (Rear Panel Forward) CONSOLE Number-8 Phillips flat-head screws 65513 2-10 Catalyst 2950 Switch Hardware Installation ...
Installing the Switch Chapter 2 Installation Figure 2-4 Attaching Brackets on a Catalyst 2950G-48-EI, Catalyst 2950SX-48-SI, or Catalyst 2950T-48-SI Switch in a 19-Inch Rack (Front Panel Forward) Number-8 Phillips flat-head screws SYST RPS STAT UTIL DUPLX SPEED MODE 1 1X 23 ...45 67 89 10 11 12 13 14 15 16 15X 2X 16X 65512 Figure 2-5 Attaching Brackets on a Catalyst 2950G-48-EI, Catalyst 2950SX-48-SI, or Catalyst 2950T-48-SI Switch in a 19-Inch Rack (Rear Panel Forward) CONSOLE Number-8 Phillips flat-head screws 65513 2-10 Catalyst 2950 Switch Hardware Installation ...
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Chapter 2 Installation Installing the Switch Figure 2-6 Attaching Brackets on a Catalyst 2950G-48-EI, Catalyst 2950SX-48-SI, or Catalyst 2950T-48-SI Switch in a 19-Inch Telco Rack CONSOLE 65514 Number-8 Phillips flat-head screws Figure 2-7 Attaching Brackets on the Catalyst 2950G-24-EI-DC or 2950ST-24 LRE 997 Switch in a 23-Inch Telco Rack (Front Panel Forward) Number-8 Phillips truss-head screws SYST RPS STAT UTIL DUPLX SPEED MODE 1 1X 23 45 67 8 9 10 11 12 11X 2X 12X 65673 OL-6156-01 Catalyst 2950 Switch Hardware Installation Guide 2-11
Chapter 2 Installation Installing the Switch Figure 2-6 Attaching Brackets on a Catalyst 2950G-48-EI, Catalyst 2950SX-48-SI, or Catalyst 2950T-48-SI Switch in a 19-Inch Telco Rack CONSOLE 65514 Number-8 Phillips flat-head screws Figure 2-7 Attaching Brackets on the Catalyst 2950G-24-EI-DC or 2950ST-24 LRE 997 Switch in a 23-Inch Telco Rack (Front Panel Forward) Number-8 Phillips truss-head screws SYST RPS STAT UTIL DUPLX SPEED MODE 1 1X 23 45 67 8 9 10 11 12 11X 2X 12X 65673 OL-6156-01 Catalyst 2950 Switch Hardware Installation Guide 2-11
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Installing the Switch Chapter 2 Installation Figure 2-8 Attaching Brackets on the Catalyst 2950G-24-EI-DC or 2950ST-24 LRE 997 Switch in a 23-Inch Telco Rack (Rear Panel Forward) CONSOLE 65674 Number-8 Phillips truss-head screws Figure 2-9 Attaching Brackets on the Catalyst 2950G-24-EI-DC or 2950ST-24 LRE 997 Switch in a 23-Inch Telco Rack CONSOLE Number-8 Phillips truss-head screws 65675 2-12 Catalyst 2950 Switch Hardware Installation Guide OL-6156-01
Installing the Switch Chapter 2 Installation Figure 2-8 Attaching Brackets on the Catalyst 2950G-24-EI-DC or 2950ST-24 LRE 997 Switch in a 23-Inch Telco Rack (Rear Panel Forward) CONSOLE 65674 Number-8 Phillips truss-head screws Figure 2-9 Attaching Brackets on the Catalyst 2950G-24-EI-DC or 2950ST-24 LRE 997 Switch in a 23-Inch Telco Rack CONSOLE Number-8 Phillips truss-head screws 65675 2-12 Catalyst 2950 Switch Hardware Installation Guide OL-6156-01
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Installing the Switch Figure 2-12 Attaching Brackets on the Switch in a 24-Inch Telco Rack Chapter 2 Installation CONSOLE 65667 Number-8 Phillips truss-head screws Figure 2-13 Attaching Brackets on a Catalyst 2950G-48-EI, Catalyst 2950SX-48-SI, or Catalyst 2950T-48-SI Switch in a 24-Inch Rack (Front Panel Forward) Phillips flat-head screws SYST RPS STAT UTIL DUPLX SPEED MODE 1 1X 23 45 67 8 9 10 11 12 13 14 15 16 15X 2X 16X 74528 2-14 Catalyst 2950 Switch Hardware Installation Guide OL-6156-01
Installing the Switch Figure 2-12 Attaching Brackets on the Switch in a 24-Inch Telco Rack Chapter 2 Installation CONSOLE 65667 Number-8 Phillips truss-head screws Figure 2-13 Attaching Brackets on a Catalyst 2950G-48-EI, Catalyst 2950SX-48-SI, or Catalyst 2950T-48-SI Switch in a 24-Inch Rack (Front Panel Forward) Phillips flat-head screws SYST RPS STAT UTIL DUPLX SPEED MODE 1 1X 23 45 67 8 9 10 11 12 13 14 15 16 15X 2X 16X 74528 2-14 Catalyst 2950 Switch Hardware Installation Guide OL-6156-01
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Chapter 2 Installation Installing the Switch Figure 2-14 Attaching Brackets on a Catalyst 2950G-48-EI, Catalyst 2950SX-48-SI, or Catalyst 2950T-48-SI Switch in a 24-Inch Rack (Rear Panel Forward) CONSOLE 74529 Phillips flat-head screws Figure 2-15 Attaching Brackets on a Catalyst 2950G-48-EI, Catalyst 2950SX-48-SI, or Catalyst 2950T-48-SI Switch in a 24-Inch Telco Rack 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 47X 48X Catalyst 2950 SERIES 1 2 24" Configuration Phillips flat-head screws 74530 OL-6156-01 Catalyst 2950 Switch Hardware Installation Guide 2-15
Chapter 2 Installation Installing the Switch Figure 2-14 Attaching Brackets on a Catalyst 2950G-48-EI, Catalyst 2950SX-48-SI, or Catalyst 2950T-48-SI Switch in a 24-Inch Rack (Rear Panel Forward) CONSOLE 74529 Phillips flat-head screws Figure 2-15 Attaching Brackets on a Catalyst 2950G-48-EI, Catalyst 2950SX-48-SI, or Catalyst 2950T-48-SI Switch in a 24-Inch Telco Rack 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 47X 48X Catalyst 2950 SERIES 1 2 24" Configuration Phillips flat-head screws 74530 OL-6156-01 Catalyst 2950 Switch Hardware Installation Guide 2-15
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...switches autonegotiate both speed and duplex, and let the 10/100/1000 ports on the Catalyst 2950G-24-EI-DC switch only autonegotiate speed. • Set the speed and duplex parameters on Catalyst 2950T-24 ...ports on Catalyst 2950 LRE and Catalyst 2950T-48-SI switches operate at 10 or 100 Mbps in half- The 10/100/1000 ports on the Catalyst 2950G-24-EI-DC and Catalyst 2950ST-24 LRE 997 ...you can reduce performance or result in link failures between the devices. Caution The Catalyst 2950G-24-EI-DC or Catalyst 2950ST-24 LRE 997 switch is suitable only for the wiring must be grounded at...
...switches autonegotiate both speed and duplex, and let the 10/100/1000 ports on the Catalyst 2950G-24-EI-DC switch only autonegotiate speed. • Set the speed and duplex parameters on Catalyst 2950T-24 ...ports on Catalyst 2950 LRE and Catalyst 2950T-48-SI switches operate at 10 or 100 Mbps in half- The 10/100/1000 ports on the Catalyst 2950G-24-EI-DC and Catalyst 2950ST-24 LRE 997 ...you can reduce performance or result in link failures between the devices. Caution The Catalyst 2950G-24-EI-DC or Catalyst 2950ST-24 LRE 997 switch is suitable only for the wiring must be grounded at...