Seagate ST34501N Product Manual page 63

Cheetah 4LP Product Manual, Rev. B
9.6.4.1 Mating connectors for "N" models
The nonshielded cable connector should be a 50-conductor connector consisting of two rows of 25 female con-
tacts with adjacent contacts 100 mils apart.
Recommended mating flat cable connector part numbers are:
Closed end 3M-3425-7000
(for cable 3M-3425-7050
ends)[1] Dupont-66900-290
Open end 3M-3425-6000
(In daisy-chain)[1] 3M-3425-6050
Dupont-66900-250
[1] See Figure 16.
The drive device connector is a nonshielded 50-conductor connector consisting of two rows of 25 male pins
with adjacent pins 100 mils apart. The connector is keyed (see Figure 17).
Mating panel mount connector: 3M-CHE-2050-J01A10-KLE.
9.6.4.2 Mating connectors for "W" and "WD" models
The nonshielded cable connector should be a 68-conductor connector consisting of two rows of 34 male con-
tacts with adjacent contacts 0.050 inch (1.27 mm) apart.
Recommended mating flat cable connector part numbers are:
Amp Model 786096-7
Amp Model 786090-7
Amp Model 749925-5
Amp Model 88-5870-294-5 W/O Strain Relief (25 mil conductor centers, 30 AWG wire).
Amp Model 1-480420-0
Berg 69307-012
[1] See Figure 16.
The drive device connector is a nonshielded 68-conductor connector consisting of two rows of 34 female pins
with adjacent pins 50 mils apart. The connector is keyed by means of its shape (see Figure 18).
9.6.4.3 Mating connectors for "WC" and "DC" models
The nonshielded connector should be an 80-conductor connector consisting of two rows of 40 contacts with
adjacent contacts 50 (1.27 mm) mils apart. I/O connection using a cable is not recommended. The length and
size of the host equipment DC power carrying conductors from the DC power source to the host equipment 80-
pin disk drive interface connector(s) must be strictly designed according to proper power transmission design
concepts. No possibility for the equipment user to attach an 80-pin cable/connector should be allowed, since
the length of the DC power carrying conductors could not be controlled and therefore could become too long
for safe power transmission to the drive. Daisy-chain 80-conductor cables should especially not be allowed,
since the power-carrying conductors on the 80-conductor interface were not intended to support a series of
drives.
To insure that both drive connector and host equipment mating connector mate properly, both drive connector
and host equipment mating connector must meet the provisions of "SFF-8046 Specification for 80-pin connec-
tor for SCSI Disk Drives."
W/O Strain Relief, No Center Key
With Strain Relief, No Center Key
With Strain Relief, With Center Key
W/O Strain Relief, No Center Key
With Strain Relief, No Center Key
With Strain Relief, With Center Key
Female, 68-pin, panel mount
Female, 68-pin, cable mount
(50 mil conductor centers, 28 or 30 AWG wire)
Use two, 34-conductor, 50 mil center flat cable with this connector.
This type connector can only be used on cable ends. [1]
Use either on cable ends or in cable middle section for daisy-chain
installations [1].
Power connector 4 circuit housing
12-position, 2 x 6, 2 mm receptacle housing
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