The problem is that the miner you are looking at (Antminer S5) is an ASIC miner, specifically designed for SHA-256 mining. Litecoin is Scrypt mining and requires a different type of miner.
You can not mine Litecoin with an Antminer S5. If you mined Bitcoin, you'd be looking at $22.24 / month, or $272.52 / year running your miner 24/7 with zero electricity costs.