Rear panel, Att. zone amplifier – Inter-M PAM-520 User Manual
Page 9

6
PAM-510/520
ATT. ZONE AMPLIFIER
Rear Panel
Rear Panel
1. SPEAKER OUTPUT TERMINAL
This terminal is for speaker wire connection.
Connect speakers whose combined impedance is equal to or higher than the rated output impedance, as
shown below.
2. NIGHT RINGER
Connect night ringer terminal to telephone line. You can telephone ring Via speaker from other office in the night.
3. TELEPHONE INPUT TERMINALS
These terminals can be connected to a telephone exchange system for paging purposes.
NOTE:
When an active signal is sent through the telephone input, all other input signals except for AMP IN
are muted.
4. EXT CHIME
When these two terminals are shorted by wired remote, the one shot chime is activated.
Output
4
Ω
SPK 1~5
Terminal
(LOW IMPEDANCE)
(HIGH IMPEDANCE)
Model Name
PAM-510
22V/4
Ω (120W)
EC & Associated : 100V/400
Ω (25W MAX)
USA/CANADA & Associated : 70V/196
Ω (25W MAX)
PAM-520
31V/4
Ω (240W)
EC & Associated :100V/200
Ω (50W MAX)
USA/CANADA & Associated : 70V/98
Ω (50W MAX)