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Main and Management Combo Card

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For the smaller 1U and 2S chassis options, a single Main/Management/Switch "Combo" Card is used.

The JumboSwitch Main/Management “Combo” Card, Model TC3840-3, provides layer 2 switching functionalities and is the central switching fabric for JumboSwitch Interface cards. The TC3840-3 offers 4 x 10/100/1000 Copper Ports and 2 x SFP Gigabit Ports for connecting up and down nodes to form a fiber/copper ring or bus topology.

  • Provides Layer 2 Switching Functionality
  • Fully Managed via CLI, Telnet & SNMP
  • 4-Port 10/100/1000 Copper, 2-Port SFP Gigabit
  • Ethernet Rate Limiting, VLAN, QoS
  • Temperature, Power Consumption & SFP Monitoring
  • Industrial Hardened & IEC 61850-3, IEEE 1613 & NEMA TS-2 Compliant


The JumboSwitch Main/Management "Combo" Card is typically used by Utilities to connect substation RTUs/PLCs and telephones or T1/E1 links to a central control center.

It is also used by Data Service Providers for its modular multi-interface, rate limiting, one-fiber-bidirectional and media conversion capabilities.

TC3840-3 - Main & Mgmt for 1U and 2S Chassis
Click to enlarge


Data Rates
  1. 10/100/1000 Mbps with Rate Control
  1. TransmitterELED/LASER*
  2. ReceiverPIN Diode
  3. Wavelength
  4. SFP850nm MM
  5. SFP1300/1550nm SM
  6. SFP Optic
  7. ConnectorsLC
  8. Port2
  9. Interface1000SX/LX
  1. Ethernet
  2. ConnectorRJ45 Female
  3. Ports4
  4. Interface10/100/1000M
  5. System
  6. Bit Error Rate1 in 1010 or Better
Regulatory Approval
  1. CE, FCC Part 15, CISPR (EN55022) CLASS A, IEC 61850-3, IEEE 1613, NEMA TS-2
  2. Diagnostic Functions
  3. Traffic Statistics, Transmit Power & Receive Power, Temperature
  4. LEDs
  5. PWR (A,B), Vcc, ALM, SHR, MSTR, BP, MGM
  1. Standard15W
  2. Option12, 24, -48 VDC or 115/230 VAC, 50/60Hz (with external cube)
Operating Temperature
  1. High Temp(-20°C to 70°C
  2. Extreme Temp(-40°C to 80°C
  1. Temperature-40°C to 90°C
  2. Humidity95% non-condensing
Physical (Rackmount Card)
  1. Height(3.2 cm) 1.25”
  2. Width(17.8 cm) 7.0”
  3. Depth(23.5 cm) 9.25”
  4. Weight(0.5 kg) 1 lbs*
*Contact factory for higher requirements


For more information

For assistance with this product or to request a user manual please contact Technical Support.