Scientific Atlanta Rosa - Manual (Page 3)

ROSA EM - Element Management System
3
Specifications
Remote Control and Configuration Ports (*)
Ethernet management port
Number of ports
Connector type
Physical layer
LED indication
Dielectric isolation
Note: In case a client (simple Web browser, TNCS client,
ROSA NMS client or third party NMS) is used in combination
with ROSA EM, it must be possible to perform a successful
ping command between ROSA EM and the client in both
directions.
2
RJ-45
10/100Base-T
LINE and ACT
1.5 kV AC
RS-232 Serial Ports
Number of ports
Connector type
Pin layout
Physical layer
Baud rate
Protocol
ESD
4
Male, 9 pin Sub-D
Standard DTE
RS-232
Up to 38.4 kbaud
RCDS, SMC or other
Max. 15 kV Performance Criterion B
RS-232 - RS-485 - RS-422 Serial Ports (configurable)
Number of ports
Connector type
Pin layout
Physical layer
Baud rate
Protocol
ESD
4
Male, 9 pin Sub-D
Configurable (for RCDS or SMC pin layout refer to user’s
guide)
RS-232, RS-422 or RS-485
Up to 38.4 kbaud
RCDS, SMC or other
Max. 15 kV Performance Criterion B
Digital Input Ports
Number of ports
Connector type
Contacts per port
Decision threshold
Input voltage range
ESD
108
Female, 25 pin Sub-D
2
TTL / CMOS
Max. ± 15 V
Max. 15 kV Performance Criterion B
Galvanic Isolated Digital Input Ports
Number of ports
Connector type
Contacts per port
Decision threshold
Differential over voltage protection
Common mode input voltage
ESD
Dielectric isolation
12
Female, 25 pin Sub-D
2
Low: < 0.8 V, High: > 2 V
Max. ± 15 V
Max. 60 V DC or 42 V AC
Max. 15 kV Performance Criterion B
500 V port to port
Relay Outputs
Number of ports
Connector type
Contacts per port
Maximum voltage
Maximum load current
Dielectric isolation
Load
24
Female, 25 pin Sub-D
3 (common, normal open, normal closed)
42 V AC / 60 V DC
1 A @ 30 V DC
500 V
Resistive load
External Temperature Sensor
Number of ports
Note: Temperature sensors available as an option.
2