|   | DDU7C-250MC3 | ETC |  |  | 10-tap, ttl-interfaced fixed delay line | 
    |   | DDU7C-25A3 | ETC |  |  | 10-tap, ttl-interfaced fixed delay line | 
    |   | DDU7C-25B3 | ETC |  |  | 10-tap, ttl-interfaced fixed delay line | 
    |   | DDU7C-25M | ETC |  |  | 10-tap, ttl-interfaced fixed delay line | 
    |   | DDU7C-25MC3 | ETC |  |  | 10-tap, ttl-interfaced fixed delay line | 
    |   | DDU7C-300 | ETC |  |  | 10-tap, ttl-interfaced fixed delay line | 
    |   | DDU7C-300A3 | ETC |  |  | 10-tap, ttl-interfaced fixed delay line | 
    |   | DDU7C-300B3 | ETC |  |  | 10-tap, ttl-interfaced fixed delay line | 
    |   | DDU7C-300M | ETC |  |  | 10-tap, ttl-interfaced fixed delay line | 
    |   | DDU7C-300MC3 | ETC |  |  | 10-tap, ttl-interfaced fixed delay line | 
    |   | DDU7-100 | ETC |  |  | 10 taps (14 pins dip) t2l interfaced | 
    |   | DDU7-xxx | ETC |  |  | 10 taps (14 pins dip) t2l interfaced | 
    |   | DDU-7-20 | ETC |  |  | 10 taps (14 pins dip) t2l interfaced | 
    |   | DDU-7-200 | ETC |  |  | 10 taps (14 pins dip) t2l interfaced | 
    |   | DDU-7-25 | ETC |  |  | 10 taps (14 pins dip) t2l interfaced | 
    |   | DDU-7-250 | ETC |  |  | 10 taps (14 pins dip) t2l interfaced | 
    |   | DDU-7-300 | ETC |  |  | 10 taps (14 pins dip) t2l interfaced | 
    |   | DDU-7-400 | ETC |  |  | 10 taps (14 pins dip) t2l interfaced | 
    |   | DDU-7-50 | ETC |  |  | 10 taps (14 pins dip) t2l interfaced | 
    |   | DDU-7-500 | ETC |  |  | 10 taps (14 pins dip) t2l interfaced |