ZETRON 4000 Series, Installation Manual

Page: 73 / 418

73
Auxiliary I/O Card Installation (Optional)
Intercom Interface
The instructions in this section are somewhat generic. If you are configuring an Aux I/O
Card specifically for use with a Zetron Intercom Interface, see the
Series 4000 and Model
4010 Intercom Interface Product Manual (P/N 025-9331 rev C or newer). That manual
provides installation, configuration, and programming instructions that are much more
specific to that task.
Electrical Specifications
Outputs
(12 per card)
Optically Isolated Inputs
(8 per card)
Nonisolated Inputs
(32 per card)
IRIG B Decoder
(One connection per system)
Relay Contact Current: 1.0 A
Isolation Voltage:
50V with respect to system ground and
between contacts
“On” Current Range: +5 to +10 mA
“Off” Current Range: -15 to +1 mA
Maximum Positive Current: +15 mA continuous, +40 mA peak
Maximum Negative
Current: -15 mA continuous, -40 mA peak
Equivalent Series
Resistance: 405  plus a 0.7-volt drop (forward)
Isolation Voltage: 100V with respect to system ground
Inactive Voltage Range: +3.5 to +30V
Active Voltage Range: -30V to +0.9V
Equivalent Parallel
Resistance: 8.2K

pulled to +11.5V
Input Amplitude: 1 to 4 V
pp