iES20G/iES18G
Series User’s Manual
iS5 Communications Inc.
17
4
– Chassis Ground
Connected to the safety ground terminal for AC
units or the ground bus for DC inputs. Chassis
ground connects to both power supply surge
grounds via a removable jumper.
5
PWR2 (+) - Positive
Connected to the positive terminal of the
10-48VDC backup power source.
6
PWR2
– Ground
Power supply 2 ground connection.
7
PWR2 (-) – Negative
Connected to the negative terminal of the
10-48VDC backup power source.
8
RLY NO
Failsafe relay, normally open contact.
9
RLY CM
Failsafe relay, common contact.
10
N/C
No connection
3.5
Console Connection
To manage the switch via console port, connect the console cable (provided with the switch) from a PC
serial port (DB9) to the Console port on the front of the switch (RJ45).
100-240VAC rated equipment: A 250VAC appropriately rated circuit
breaker must be installed.
Equipment must be installed according to the applicable country wiring
codes.
When equipped with a HI voltage power supply and DC backup,
independent sources can be used to power the product for greater
redundancy.
88-300VDC rated equipment: A 300VDC appropriately rated circuit breaker
must be installed.
A circuit breaker is not required for DC power supply voltages of 10-48VDC.
For Dual DC power supplies, separate circuit breakers must be installed and
separately identified.
Equipment must be installed according to the applicable country wiring
codes.
