General Frequently Asked Questions

Questions:

1. Will your products work with or be compatible to our existing switches or routers?
2. Will your products support 802.2?
3. Will your products support FDDI?
4. What is SQE? How do I change SQE?
5. What is LINK? How do I change it?
6. What is LINK SENTRY? How do I change it?
7. Will your products support TOKEN RING? (802.5)
8. What power supply should I use?
9. What are the hours of MiLAN Tech Support? How can we contact them?

Answers:

• MiLAN Technology's product are IEEE 802.3 compliant and should work with any vendor's products (if they're also IEEE 802.3 compliant).

• Yes, our products support 802.2.

• No. MiLAN Technology does not manufacture any FDDI products; however, products on the same Network and not on the FDDI backbone will work.

• SQE stands for Signal Quality Error. It is also referred to as "heartbeat". It is a signal used to test the collision detect circuitry in a transceiver. It is a signal that is sent back over the AUI interface when a packet is sent. It can be enabled or disabled on all MiLAN transceivers. This setting can be changed on all MiLAN products by changing the position of a jumper on the device.

• LINK is DC pulse sent over 10BASE-T, 10BASE-FL and FOIRL cabling. It is used to verify proper wiring. The LINK LED, if present, should be on SOLID when a good connection is made. If it blinks, or is not on at all, then there is either a problem with the equipment or wiring. If a LINK LED is lit on a transceiver, the pins that the transceiver receives (RX) on are good. The transmit wires, however, can only be verified by looking at the UTP connection on the other end of the wire. If LINK SENTRY is used, then LINK test both transmit (TX) and receive (RX) pairs. All IEEE 802.3 10BASE-T compliant equipment supports the LINK test. Many MiLAN Technology products can be configured to ignore the LINK test. Many MiLAN products can be configured to ignore the LINK pulse so that older non-10BASE-T equipment can be used. Link is changed by changing the position of a jumper on all MiLAN products.

• LINK SENTRY improves upon the LINK test and guarantees both the transmit and receive pairs. If LINK SENTRY is used, then LINK will test both transmit (TX) and receive (RX) pairs. If a machine stops receiving LINK, then it will stop transmitting LINK as well. It can be used with regular 10BASE-T which does not support LINK sentry, but is most effective when both ends support LINK SENTRY. This setting is modified by changing a jumper position on all MiLAN Technology products which support LINK SENTRY.

• Only our MIL-3500X Multi-Protocol Print Server is made for Token Ring, both 4 or 16 Mbps ring speed.

• All MiLAN Technology FastPort and Hub (legacy) products require external power supply and use a 12-20 Volt AC supply with a 1 amp rating(MIL-16DT). Converters like 120A/140/150/160/170 are using 12 Volt AC power supply. Repeater and redundant transceivers like the MIL-300X also uses 12-20 Volt AC power supply (optional for MIL-300X).
  All 100/1000Mbits products are using 5VDC switching external power supply.

• Contact Tech Support