Tellabs 6105 Quick Start Manual

technical manual
76-836105
rev D
practice section 836105
©
Tellabs, Inc., 4 June 1981
all rights reserved, printed in USA
6105 Signaling Converter ARD (Ringdown) Module
figure 1.
6105 Signaling Converter
ARD (Ringdown) Module
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contents
section 1 general description
section 2 application
section 3 installation
section 4 circuit description
section 5 block diagram
section 6 specifications
section 7 testing and troubleshooting
1. general description
1.01 The 6105 Signaling Converter ARD (ring-
down) module (figure 1) provides conversion be-
tween E&M facility-side signaling and any of several
modes of terminal-side automatic or manual ring-
down signaling. These modes include 30-second-
timed, 2-second-burst, and calling-party-controlled
(CPC) automatic ringdown operation and 30-second-
timed or coded ringing in either ac or dc manual
ringdown operation.
1.02 This practice section is reissued to correct
information pertaining to M-Iead delay in the man-
ual ringdown mode of operation. This practice sec-
tion also clarifies optioning requirements for the
Tellabs 4203 Terminating Set module when it is mit section of the 6101 SF Transceiver. When used
used with the 6105. in E&M-to-DX applications, the 6105 interfaces
1.03 The 6105 is typically used in combination the 6001 or 6002 DX Signaling module in the same
with a Tellabs 6101 SF Transceiver module to pro- manner.
vide a two-module SF ringdown signaling system 1.06 Features and options of the 6105 include
compatible with established criteria for F-type in- the following; accommodation of either the manual
band signaling. A Tellabs 6001 or 6002 DX Signal- or the automatic ringdown mode, switch-selectable
ing module can also be paired with the 6105 to loop-start or ground-start operation, switch-selec-
provide a ringdown arrangement with DX signaling table superimposed or grounded ringing-generator
over the facility. The 6105 and its associated SF or biasing, ringback indication to the originating sta-
DX module normally face another 6105 (or equiva- tion during ringing intervals, leads to provide a vis-
lent) and an associated SF or DX module at the ual indication of incoming seizure or to start a local
opposite end of the facility. ringing generator, either A-and-B-lead or tip-and-
1.04 A common application of the 6105 is in ring connection to associated station-side equip-
Tellabs' 260 and 261 Signaling and Terminating ment, and a balanced loop-sensing circuit to allow
Systems. Both systems are universally wired to ac- operation in the presence of high longitudinal
cept a variety of Tel labs signaling, terminating, and voltages.
interface modules. As a reSUlt, the facility signaling 1.07 When used in automatic ringdown applica-
mode (SF or DX) and the loop signaling mode tions, the module may be optioned for any of the
(office-end foreign exchange [F XO], station-end following modes of operation: a single 2-second
foreign exchange [FXS] , E&M, conventional ring- ringing burst; 30-second ringing (continuous unless
down, or data ringdown) can be changed simply by an external or optional plug-on ringing interrupter
interchanging the appropriate modules. (See the is used) with automatic timeout if the called party
260 and 261 System practices or brochures for a fails to answer; or calling-party-controlled (CPC)
comprehensive description of the 6105's operation ringing. With CPC ringing, the called telephone
in these Systems.) rings until answered or until the calling party
1.05 When used in combination with a 6101 SF abandons the call.
Transceiver, the 6105 converts E-lead signals (de- 1.08 When used in the manual mode of operation,
rived by the 6101 from incoming SF tone states) either ac (switchboard) or dc (keyed) ringdown
to ringing signals toward the local termination. The may be effected by the 6105. In either case, a
6105 also converts local call origination signals from switch option determines if ringing is to be coded
the local termination to M-Iead inputs to the trans- (i.e., interruption under the control of the user via
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