Mining Academy
Antminer L7 and L9 Setup: Mine LTC and DOGE on a Pool
To set up an Antminer L7 or L9 for Litecoin and Dogecoin, open the web interface by IP address, go to Miner Configuration and enter stratum+tcp://enter.rupool.pro:3334 as the first pool, subaccount.worker as the worker and any character as the password. You do not configure Dogecoin separately: it is mined together with Litecoin (merged mining) and credited to your account automatically. Details on the interface, modes and cooling follow.
Mining DOGE on an ASIC: one stratum, two coins
Litecoin and Dogecoin share the Scrypt algorithm, and Dogecoin supports merged mining with Litecoin (AuxPoW technology). In practice you point a Scrypt ASIC at a single stratum, and the pool gets blocks on two networks for the same computation and distributes the rewards among miners. That is how RuPool works: a Scrypt ASIC connects to the LTC stratum and DOGE is credited as a separate coin on top of LTC. There is no separate DOGE stratum, so there is no "Dogecoin pool address" to look for.
None of the ASIC settings relate to DOGE directly. The Dogecoin wallet is set in the subaccount settings in your dashboard, not in the device firmware. The mechanics are covered in a separate article on merged mining LTC and DOGE.
A short note on L7 and L9
Antminer L7 and L9 are Bitmain Scrypt machines; hashrate is measured in gigahashes per second (GH/s) and power is in the range of several kilowatts. The L9 is the newer generation with higher hashrate and better efficiency than the L7. Exact figures differ between variants, so use the datasheet and the case sticker. If you are choosing a model or checking what a running unit earns, calculate it in the profit calculator with your electricity price, remembering that coin prices and network difficulty change.
Both are air-cooled, loud and hot. Plan for a separate room, ventilation and a heavy-duty power line, not a room in an apartment.
Step 1. Cabling and finding the IP
Connect power and Ethernet and switch on. Your router assigns an address via DHCP. The easiest way to find it is the router's client list or the IP Reporter utility: press the IP Report button on the control board and the tool displays the address. For a farm, reserve addresses by MAC in the DHCP settings so they stay stable.
Open the address in a browser. Default credentials on stock Bitmain firmware are typically root / root, but check the documentation for your batch. Change the password after the first login: an open admin panel lets anyone on your network swap the pool.
Step 2. Pool settings
Under System, Miner Configuration (the name depends on firmware), fill in the three pools:
| Block | URL | Purpose |
|---|---|---|
| Pool 1 | stratum+tcp://enter.rupool.pro:3334 | primary |
| Pool 2 | stratum+tcp://enter.rupool.pro:8889 | fallback port |
| Pool 3 | stratum+ssl://enter.rupool.pro:998 | SSL fallback |
The other Scrypt fallback TCP ports are 444 and 26. Note the difference from SHA-256: Scrypt devices use different ports than Bitcoin ASICs. A common mistake is pasting port 3333 from an S19 guide onto an L7: a Scrypt device ends up on the wrong service and no valid shares are accepted, so no hashrate appears in the dashboard. For Scrypt use only 3334, 8889, 444, 26 and SSL 998.
In the Worker field of every block enter the same value, myfarm.l9_01, where myfarm is your subaccount and l9_01 the worker name (Latin letters, digits, underscores). Any password works, for example x. For a specific region instead of auto-select, replace enter.rupool.pro with a regional address: msk2-ru.enter.rupool.pro (Moscow), nsk-ru.enter.rupool.pro (Novosibirsk), hel-fi.enter.rupool.pro (Helsinki) or ala-kz.enter.rupool.pro (Almaty). Click Save & Apply and wait for the restart. The general procedure for any ASIC is in how to connect an ASIC to a pool.
Step 3. Verifying: where to see LTC and DOGE
On the Miner Status tab confirm that the first pool is Alive and accepted shares keep growing. L7 and L9 do not reach nominal hashrate instantly: give the unit at least 15 to 30 minutes before drawing conclusions.
Then open your pool dashboard. The worker appears with its hashrate, and in the earnings you see two coins, Litecoin and Dogecoin. These are not two separate workloads: it is one hashrate for which the pool collects rewards on two networks. The proportions depend on the coins' relative value and the current state of the networks, so they change over time.
Payouts are automatic, once a day: earnings accumulated up to 03:00 Moscow time are sent between 05:00 and 12:00 Moscow time if the payout threshold has been reached. You set the threshold in settings; the minimums are 0.001 for LTC and 10 for DOGE. So in the first days do not be surprised if DOGE and LTC are paid on different schedules: each coin has its own threshold. Coin details are on the Litecoin pool page and the Dogecoin pool page.
Hashrate units and checking against the dashboard
SHA-256 and Scrypt use different scales. Bitcoin devices are measured in terahashes (TH/s), Scrypt devices in megahashes and gigahashes (MH/s, GH/s). Do not worry that the L9 figure looks "small" next to an S21: these are different algorithms and their hashrates cannot be compared directly. You can convert units with the hashrate converter in the Tools section of the site.
To confirm the setup is right, compare three values: the hashrate on the ASIC status page, the worker's hashrate in the dashboard over the last few hours, and the model's rated value. Small differences are normal, because the pool counts accepted shares and short-interval estimates fluctuate. If the dashboard consistently shows noticeably less than the device, look at rejected shares, latency to the stratum and an unstable link. Try a regional address closer to the farm and compare a day of statistics.
Modes and power consumption
As with any ASIC, raising frequency increases hashrate, power and temperature, while efficiency (joules per unit of hashrate) usually gets worse. On stock firmware, L7 and L9 settings may offer a choice of operating mode (for example, normal or low power); the exact set depends on model and firmware. Third-party firmware with fine power tuning exists too, used at your own risk and with warranty in mind.
Practical advice: when electricity is expensive or cooling is weak, lowering the power limit is often better than running at maximum. Compare both in the calculator with your price per kWh: the hashrate difference may be smaller than the consumption difference.
Cooling, noise and power
- Heat. L7 and L9 dissipate several kilowatts, enough to noticeably heat a room. You need supply and exhaust ventilation: the unit draws air in on one side and blows it out the other. Keep hot exhaust away from the intake of the same or a neighboring unit.
- Noise. Air-cooled ASIC fans are as loud as a server room. For an apartment this is unacceptable without extra measures, so such devices usually go in non-residential space or into data center hosting.
- Temperature. Watch board temperatures in Miner Status. A rise with unchanged settings points to dust, hot weather or worn fans. Blow out the heatsinks regularly.
- Power. Each unit draws several kilowatts at 220 to 240 V. You need a dedicated line of proper cross-section, quality sockets and connectors and a breaker with margin. Poor contact is a frequent cause of melted plugs.
- Network. Route the Ethernet cable neatly, away from power lines; an unstable link causes disconnects and rejected shares.
Typical mistakes
- SHA-256 port (3333) on a Scrypt device instead of 3334.
- Looking for a DOGE stratum or putting a DOGE wallet in the firmware. Wallets are set in the dashboard.
- Identical worker names on different devices: they merge into one row.
- A typo in the subaccount name or a stray space from copying: the worker never appears.
- Empty backup pools: any internet failure becomes downtime.
- The default password on the ASIC itself.
FAQ
Do I connect an L7 or L9 to Dogecoin separately?
No. The device connects only to the LTC stratum on port 3334 (or 998 for SSL). DOGE is credited automatically for the same hashrate through merged mining.
Can I mine DOGE on an ASIC without Litecoin?
RuPool has no separate DOGE stratum: Dogecoin is mined together with Litecoin and credited as an additional coin. Both credits are visible in your dashboard.
What goes in the Password field?
Any value, for example x. The pool does not use the password to authorize a worker.
Why are DOGE and LTC paid at different times?
A payout happens when a coin's balance reaches the threshold you set. Thresholds differ per coin (minimum 0.001 LTC and 10 DOGE), so payout dates may not coincide.
Does the SSL port work?
Yes. For Scrypt it is stratum+ssl://enter.rupool.pro:998. It is useful as a backup pool, or as the primary one if your ISP interferes with plain TCP traffic.