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TELEPHONE INTERFACE MODULE (TIM)
14-11
14.5 TIM SETUP PROCEDURE
There are two personality cards that may be setup
and aligned: (See Figures 14-19, 14-20 and 14-21.)
1. 2WY (new style) Section 14.6.
Part No. 023-3039-670
Reg. # ATHUSA-61094-MF-E
2. DID Section 14.8.
Part No. 023-3039-660
Reg. # ATHUSA-61904-MF-E
3. 4-Wire E&M Section 14.10
Part No. 023-3039-680
14.5.1 TIM JUMPER PLACEMENT
14.5.2 MAIN BOARD SWITCH SETTINGS
The TIM does not use secondary signaling for
Command and Control Communication (see Figure
14-18).
14.6 2WY SETUP AND ALIGNMENT
PROCEDURES (-670)
2WY card (023-3039-670) is to be setup and
aligned according to the following procedures. The
023-3039-670 has been approved with the following
FCC number ATHUSA-61094-MF-E.
14.6.1 2WY JUMPER SETUP
14.6.2 2WY PRE-ALIGNMENT PROCEDURES
The Central Office (CO) typically provides a dial
up Test Tone (TT) and a Silent Line (SL). A DDO or
2WY TIM can dial these numbers for alignment
purposes when the modules are installed in a working
system.
The TT from the CO is typically the maximum
level the line will output or accept. The typical level
is 0 dBm at the CO interface. The average level of
speech on the line will typically be -13 to -16 dBm.
Table 14-3 TIM JUMPER PLACEMENT
JU Pin Description
J24 1 to 2*
2 to 3
Selects 27512 EPROM operation
Selects 27256 EPROM operation
J27 1 to 2
2 to 3*
Not used
Normal operation
P33 1 to 2
3 to 4
5and 6
open
open
open
J36 1 only
1 to 2
2 to 3
Not used
-48V E-lead operation
-15V E-lead operation
J14
J15
J21
J22
Jumper pin 1 to 2 for high impedance ground path
for split 600 ohm inputs and outputs. Leave open if
no ground path desired.
* Indicates normal operation.
Table 14-4 TIM SWITCH SETTINGS
Switch Open Sections Close Sections
S1
S3
S4
S5
1
1
1
-
2
2
2
-
-
3
3
-
4
4
4
-
-
-
-
1
-
-
-
2
3
-
-
3
-
-
-
4
Table 14-5 2WY JUMPER PLACEMENT
JU Pin Description
J204
1 to 2
2 to 3
2 only*
Loop Impedance
High impedance < 19k ohms
Low impedance < 150 ohms
Infinite impedance
J205
1 only*
1 to 2
Line default disable mode - RING
Open line
Default to ground
J206
1 only*
1 to 2
Line default disable mode - TIP
Open line
Default to ground
J207
J208
Battery or Ground Detect - TIP
J207
1 only
1 to 2*
2 to 3
1 to 2
2 to 3
J208
1 to 2
1 to 2*
1 to 2
2 to 3
2 to 3
No detect
-12V or less
-7V or less
Not Used
-5V or more
J209
1 to 2
1 only*
Transmit Gain
No gain
+6 dB gain
2WY Ground Start - Tip P1, pin 32,
Ring P1, pin 31
* Indicates normal operation.