22
9.2. Environmental Requirements
Operating
Ambient temperature: 15–30°C (with installed fan 30 CFM forced air cooling).
Relative Humidity: non-condensing, 80% max. for temperatures up to 31°C, decreasing
linearly to 50% max. at 40°C.
Pollution Degree 2 (normally only non-conductive pollution; occasional, temporary
condensation possible)
Installation Category II
Indoor use only
Transport
Temperature: -5–95°C
Relative Humidity: non-condensing, 95% max.
9.3. I/O Connector Pin Assignment
Description
Pin # Details
Commands (Inputs)
LAMP OPERATE
12
OPERATE REQUEST, apply +5V (referenced to digital
common) to initiate start cycle
EXTERNAL INTERLOCK
13
EXTERNAL INTERLOCK, apply +5V (referenced to digital
common) to close interlock and allow operation.
Status Indicators (Outputs)
LAMP ON
1
Pulled to digital common when ON
LASER ON
2
Pulled to digital common when ON
LAMP MODULE FAULT
3
Pulled to digital common when OK, float on FAULT
CONTROLLER FAULT
4
Pulled to digital common when OK, float on FAULT
IS5V SUPPLY
5
200mA maximum, referenced to digital common
DIGITAL COMMON
6,7,8,9 Galvanically isolated from system
RESERVED
10, 11
14,15
Do not connect
9.4. RS-485 Interface Pin Assignment
Description
Pin # Details
TRANSMIT A (–)
8
From EQ-77, connect to host RECEIVE A
TRANSMIT B (+)
3
From EQ-77, connect to host RECEIVE B
RECEIVE A (–)
7
To EQ-77, connect to host TRANSMIT A
RECEIVE B (+)
2
To EQ-77, connect to host TRANSMIT B
GROUND
5, 9
Galvanically isolated from system
RESERVED
1, 4, 6
Do not connect
