Operating instructions

TransTel Model TD-824-I Digital Telephone System – General Description
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System Specifications
System Capacities / Maximum
CO/PABX Lines 8
Key Telephones / ACP / Digital Doorphones (Maximum) 24
Single Line Phones(Maximum) 8
Control Relay 1 per cabinet
1 per ACP or Digital
Doorphone
External Input Sensor 1 per cabinet
1 per ACP or Digital
Doorphone
Intercom Paths (Local)

Doorphone 1 analog (requires single line
card)
< 24 Digital doorphones
External Music 1
Speed dial Total 600 sets for
Private/System Speed Dial.
Private Speed Dial 20 sets per station(Max.)
System Speed Dial 600 sets (Max.)
Electrical Specifications
CONTROL SYSTEM Stored Program
CPU 8 /16 bit CPU
SWITCHING METHOD TDM (Time Division Multiplex)
POWER REQUIREMENTS
100 - 120 V AC, (50/60Hz) 0.9 AMPS
210 - 230 V AC, (50/60Hz) 0.45 AMPS
Dedicated AC line and a good earth ground for power supply
POWER FAILURE
System operation for 180 minutes (full load) or for 4 hours (normal load) by installing
batteries (with two 12 V DC batteries 6.5 AH for each)
POWER DISSIPATION
Common Equipment Unit (idle) 21 W (full) 56 Watts
Each Telephone
Electronic Sets 2.8 Watts, maximum
Single Line Telephone 1.25 Watts
DIALING
Outward Dial Pulse - 10 pps (Pulses Per Second), DTMF
Internal Dial Pulse - 10 pps (Pulses Per Second) / DTMF /
Digital