EFJohnson 3000 SERIES - Manual (Page 125)

TELEPHONE INTERFACE MODULE (TIM)
14-15
F2 Manual Device Control/Setup
F4 User Setup
F6 Diagnostic Control
Y Displays digits in alarm display
Enter, Enter
Select F10 until the main menu is displayed
All digits, both in-bound and out-bound are
displayed on the Alarm Display.
14.8 DID SETUP AND ALIGNMENT (-660)
14.8.1 DID PERSONALITY CARD JUMPER SET-
TINGS
14.8.2 PRE-ALIGNMENT
The Central Office (CO) typically provides a dial
up Test Tone (TT) and a Silent Line (SL). The DID
alignment is more difficult since the line does not
allow outward dialing, but the DID can still be
aligned.
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.
The TIM should be pre-aligned using the Basic
Board Module alignment procedures, Section 7.3.
Input With Personality Card Installed
1. Insert 1004 Hz at -12 dBm with a 600 ohm driving
impedance into the EQU of J1.
NOTE: Be sure to block the DC voltage provided by the
DID by using a non-polarized 2.2
µ
F capacitor with a
working voltage greater than 63V.
2. Set S5 for Test 7 ( sections 1, 2 and 3 open, close 4).
3. Reset the module, Press S2 and release.
4. Adjust R41 for -6 dBm
±
0.5 dB at J11.
5. Verify -6 dBm
±
1 dB at TP5.
6. Adjust R214 on the personality card for -12 dBm
±
1
dB at TP203 (DTMF input level).
7. Set S5 for normal operation (all sections closed).
8. Reset the module, Press S2 and release.
Output
1. Place a 600 ohm resistor in series with a non-polar-
ized 2.2
µ
F capacitor, 63V breakdown or greater in
EQU of J1.
2. Set S5 for Test 1 (section 1 open, close 2, 3 and 4).
3. Reset the module, Press S2 and release.
4. Adjust R83 for -3 dBm
±
0.5 dB at TP3.
5. Adjust R44 to be -9 dBm
±
1 dB at J12.
(This provides a maximum level of -13 dBm
±
2 dB
across the line. The loss is due to the hybrid trans-
former. Verify the level across the 600 ohm resistor
and 2.2
µ
F cap is -13 dBm
±
2 dB, measure with a
balanced non-grounded AC voltmeter.)
a. DTMF Output Level:
b. Set S5 for Test 3 (sections 1-2 open; 3-4 closed).
c. Reset the module, Press S2 and release.
Table 14-6 DID JUMPER PLACEMENT
JU Pin Description
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
1 to 2
2 to 3
1 only*
Dial Tone or Mobile Speech Det.
Dial Tone Detect
Mobile Speech Detect
Not Used
J208 Fuse Holder
J209
1 to 2
1 only*
Transmit Gain
No Gain
+6 dB Gain
DID line connections - Tip, P1, pin 31
Ring, P1, pin 32
* Indicates normal operation.