September 2004 NEC Business Solutions Ltd
86 - Chapter 11 Specifications
Doc. No. 8846 - Release 1.1
September 2004
Doorphone Specifications
Output Impedance
600Ω
Output Level Nominal 250mV (-10dBm)
Maximum Output 400mV RMS
Configuration Normally open
BGM / ExMOH Source Input Specifications
Input Impedance 600 Ω @ 1kHz
Input Level Nominal 250mV (-10dBm)
Maximum Output 1V RMS
External Paging Output Specifications
Output Impedance 600Ω @ 1kHz
Output Level Nominal 250mV (-10dBm)
Maximum Output 400mV RMS
EXIFU-A1 LAN Port Specifications
Standard IEEE802.3 10 Base-T and 100Base-TX
Compliant
Access CSMA/CD
I/F (Layer 1) Speed: 10Mbps/100Mbps Auto Negotiation
Cable: CAT5 or better, Straight/Cross Auto
Crossover
Cabling Requirements
• Do not run extension cable in parallel with the AC source, telex or computer etc. If the
cables are near cable runs to those devices, use shielded cable with grounded shields or
install the cable in conduit.
• When cables must be run on the floor, use cable protectors.
• Cable runs for Key Telephones, DSS Consoles, Single Line Telephones, and Doorphone
Boxes must be a dedicated, isolated cable pair.
• Aerial distribution cabling is not allowed.
• Trunk Lines must be installed with lighting protectors.
• Do not use 4-wire cabling for DSS Console and SLT connections. Use only 2-wire (centre
Pair).
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