Instruction manual

TECHNICAL SPECIFICATIONS
Port Specifications (Contd)
TRUNK PORTS
TRUNK TYPE
CIRCUIT PACK
SPECIFICATIONS
Auxiliary Trunk
TN763
● Capacity: 4 Circuits
● 3-pair Interface:
Voice (T, R),
Signaling (S, S1),
Status (SZ, SZ1)
Direct Inward
TN753
Dialing (DID)
● Capacity: 8 Circuits
Trunk
● 2-wire (600 Ohm Fixed
Impedance) Transmission
● Signaling: Wink Start, Delay Dial,
or Immediate Dial. Accepts Dial
Pulse Signals only
● Incoming Service only
Tie Trunk
TN760B
● Capacity: 4 Circuits
● Supports Type I E&M, Type I
Compatible E&M or Type V
Simplex Signaling
● 4-Wire Transmission
● 3-Pair Interface
Transmit
Receive
Signaling (E&M)
● Max Loop Resistance: 650 ohms
November 1995 5-17