Zhone Technologies IMACS Network Device - Manual (Page 70)

Zhone Technologies, Inc. IMACS Product Book, Version 4
March 2001 Page 66
Table 20—Alarm Card Specifications
Model 840160, 840260, 840360
Physical Interface
Female 50-pin RJ-27x Telco connector
Electrical Interface 4 to 20 mA Active Current Loop
Alarm Input Modes Active/passive (jumper selectable per port)
Alarm Input Trigger External circuit opening/closing (software selectable per port)
Alarm Input Power Requirements Network batter (+48V DC) or system voltage (+12V DC). Needed
only in Active Mode
Alarm Input Power Source through
jumper selection Selection applies to all ports in 840160 and 840260. Selection
applies to a group of 14 sensors in 840360.
Alarm Output Modes Active/standby (software selectable per port)
Alarm Output Trigger Major alarm/minor alarm/any alarm (software selectable per port)
Alarm Output Power Source Supplied by external device
Alarm Output Action Open/close
I/O Ports 840160 840260 840360
User-defined Input 4 3 28
User-defined Output 4 Form C 4 Form C 4 Form A, 2 Form B, 8 Form C
Automatic on power fail 0 1 1 Form C only
Model 8403 Buzzer
Type Piezo buzzer
Tones 3kHz internally generated or user supplied via the network
Modes Local or remote (software selectable)
Model 840360 Telephone Port
Physical Interface RJ11F
Type FXS Loop Start
Loop Resistance 2400 Ohm
Loop Current 18 mA to 32 mA
Termination Impedance 600 Ohm
Nominal Transmit TLP -10.0 dB to + 5.0 dB in steps of 0.1 dB
Nominal Receive TLP -10.0 dB to +2.0 dB in steps of 0.1 dB
PCM Coding µ-Law only
Standards Compatibility
UL 1950 UL standard for safety of information technology equipment
CEN 60 950/A2 Safety of information technology equipment including electrical
business equipment
CEN 50082-1 Electromagnetic compatibility generic immunity standard part 1
for commercial, residential and light industry.
VI. Server Cards
1. ADPCM Voice Compression Server
The 887160 ADPCM (Adaptive Differential Pulse Code Modulation) server card is designed to compress digital and
analog voice traffic for transmission over wide area network links. The level of compression for an individual
channel is software configurable at 24Kbps, 32Kbps or 40Kbps. This card requires a matching card at the other end
to decompress the voice channels to normal 64 Kbps operation. A single ADPCM card is capable of compressing
64 channels of voice simultaneously. Since the ADPCM card is a server card, these 64 channels can be originated
from a variety of interfaces, including FXS, FXO, E&M, SRU, BRI, and T1/E1. In a 3.x platform, up to two
ADPCM server cards can be supported per IMACS system for a total of 128 compressed voice channels. In a 5.x
platform, 3 ADPCM cards could be used to carry a total of 192 voice channels.