Derive the steady-state difference equations for a sequential two-station, single-server system, with Poisson input (parameter ) and exponential service (parameters 1, 2), where no queue

Derive the steady-state difference equations for a sequential two-station, single-server system, with Poisson input (parameter λ) and exponential service (parameters µ1, µ2), where no queue is allowed in front of station 1 and at most one customer is allowed to wait between the stations. Blockage occurs when there is a customer waiting at station 2 and a customer completed at station 1. For the case µ1 = µ2, solve for the steady-state probabilities.