Section 365–262–205
14
Option
Function/Remarks
Position
W
(3652
W1
Condition the E2-lead to go idle then busy after 2.5 seconds during a carrier failure
(3652–
62 only)
W2
Condition the E2-lead to go busy during a carrier failure
62 only)
W3
Condition the E2-lead to go idle during a carrier failure
Y
(3652–
OPEN
Balanced contact closure between the 1-lead and 2-lead
(3652–
68 only) CLOSED
Switched ground output on the 1-lead and a ground on the 2-lead
Z
(3–way
push on
jumper)
Z1
Tandem mode — M-lead conditioning
Busy M-lead:
Battery
Idle M-lead:
Open (screw option ZC open)
Ground (screw option ZC closed)
Z2
E&M mode — E-lead conditioning
Type I/III E&M Signaling Interface (EB grounded)
Z3
E&M mode - E-lead conditioning
Type II Signaling Interface (E and EB dry contact)
Busy E-lead:
E and EB shorted
Idle E-lead:
E and EB open
ZC
OPEN
Normal mode E-lead signaling (open for idle)
CLOSED
Tandem mode M-lead signaling (ground for idle)
FC
(3652–
OPEN
E2-lead signaling (open for idle)
(3652–
62 only) CLOSED
E2-lead signaling (ground for idle)
8.
ALIGNMENT
8.1
Transmit Alignment
The XMT PRESCRIPTION GAIN switches (half of S4 and half of S5) are used together to provide up to 32.5dB
of prescription gain in increments of 0.1dB to accommodate an input TLP range from +10.0 to –22.5dBm. To ad-
just the transmit path to the proper operating level, the difference b10.0 and the transmit TLP at T&R
must be obtained.
[XMT GAIN = (+10.0) –TLP]
For an input TLP of –22.5dBm, the XMT GAIN = (+10.0) - (–22.5) = 32.5dB. Set the sum of the switch settings on
S4–5 through S4–8 and S5–6 through S5–10 to 32.5.
8.2
Receive Alignment
The RCV PRESCRIPTION GAIN switches (half of S4 and half of S5) are used together to provide up to 32.5dB
of prescription gain in increments of 0.1dB to accommodate an output TLP range from +10.0 to –22.5dBm. To
adjust the receive path to the proper operating level, the difference between the receive TLP at T1&R1 and –22.5
must be obtained.
[RCV GAIN = TLP – (–22.5)]
For an output of TLP of –16.0dBm, the RCV GAIN = (–16.0) - (–22.5) = 6.5dB. Set the sum of the switch settings
on S4–1 through S4–4 and S5–1 through S5–5 to 6.5.
9.
TESTING
After completing Parts 4 through 8, place a call end-to-end through the facility to verify proper operation. If trouble
is encountered, recheck all installer connections, options and alignment settings, and verify that the channel unit
is making positive connection to the backplane connector. If trouble persists, replace the unit with a similar unit
known to be in proper operating order and retest the facility. Channel unit testing for fault diagnosis or verification
of circuit operation is provided in Section 360–001–205.
