B. Technical Specifications
B-2
March 2001
8820-A2-GN20-30
Operating
Environment
Ambient Temperature: 32
°
to 122
°
F (0
°
to 50
°
C)
Relative Humidity: 5% to 95% noncondensing
Storage Temperature: –4
°
F to 158
°
F (–40
°
C to 85
°
C)
Shock and vibration sufficient to withstand normal shipping
Interfaces
48V Power (two pairs of screw terminals for A and B inputs)
Eighteen 8-pin modular jacks for 10/100BaseT LAN connection
One Management 10/100BaseT and one Management Serial
interface for the MCP card
Local CO alarm system, major and minor alarms (two pairs of dry
contact closures via an 8-pin modular jack; supports up to
57 VDC, 0.1 amp)
Two rear-mounted interfaces: Eighteen 50-pin Telco-type connectors
for DSL loop interfaces, and PWR A and PWR B, DC power access
One rear-mounted ground lug for connecting CO ground
AC Alarm. High Impedance = Normal, Low Impedance = Alarm
Specifications
Criteria*
* Technical Specifications subject to change without notification
.